Computers were employed at Greenwich from 1836 until 1937 when the post was abolished. During most of this period, they made up the largest part of the total workforce. Originally all the computers were supernumeraries, but from 1896, some were also established. Their job was to turn observational data into something more useful by reducing it to a standard form. This necessarily involved long and tedious calculations which before the age of mechanical calculators and electronic computers, all had to be done by hand. From 1842 onwards, some were also deployed as observers. Turnover of the supernumeraries was much greater than with the established computers and assistants.
The names of the supernumeraries are less systematically recorded and reported in the observatory’s archives and publications than those of the established staff. Because of this, it is difficult to compile what can be regarded as a comprehensive list. For the moment, lists of different categories of computer have been compiled with a view to merging them at a later date. They can be found towards the bottom of this page.
Until Nevil Maskelyne’s arrival as Astronomer Royal in the 1760s, the majority of calculations were carried out by either the Astronomer Royal or his assistant. However, the production of the Nautical Almanac (first published in 1766) required so many calculations to be done and independently checked, that a team of Computers and Comparers were employed specifically for the task. These particular individuals were funded by the Board of Longitude and until 1818 were supervised by the Astronomer Royal. The basic requirements for the post of Computer were: considerable literacy and numeracy, the ability to use mathematical and astronomical tables, attention to detail, and neatness. Any knowledge of astronomy was not regarded as essential. The number of Computers working on the Almanac at any one time during Maskelyne’s period in office varied between four and nine. They worked from home and although many lived in the vicinity of London, others came from far flung corners of England. One such was Mary Edwards from Ludlow in Shropshire who was employed from 1795 to 1811. She has the distinction of being the first and only woman to be employed in a professional capacity by an Astronomer Royal until four more were taken on by William Christie in 1890.
Click here to read more about Maskelyne’s computers in an article by Mary Croarken (pdf).
The first team of Computers to work at the Observatory itself were not its own employees and were kept segregated from the Observatory’s own staff. Their task was to reduce the Greenwich Planetary and Lunar Observations made between 1750 and 1830 – a project that had originally been proposed by George Airy in 1833 while Director of the Cambridge Observatory. Funding for the Planetary reductions was obtained on 3 August that year, with work commencing under Airy’s supervision at Cambridge on 27 February 1834. Airy was also responsible for supervising a new reduction of Groombridge’s observations, this particular project being completed by early January 1837.
The reductions were worked on initially by just one computer, John Glaisher, the brother of Airy’s then assistant James Glaisher. Exactly when the work was transferred to Greenwich is not clear. Airy was appointed Astronomer Royal with effect from 1 October 1835, but continued to base himself in Cambridge until the end of the year while alterations were made to the dwelling house at Greenwich. It is possible that John Glaisher moved to Greenwich at the time of Airy’s appointment, but it seems more likely that he remained in Cambridge. In February 1836 James Glaisher moved to Greenwich and John was appointed in his place as assistant at Cambridge. At this point, work on the reductions appears to have ground to a halt, being recommenced in mid 1836 at Greenwich by a specially established small team of computers under the superintendance initially of John William Thomas and after his death in 1840 by Hugh Breen senior. The financial go-ahead for the Lunar reductions was obtained on 31 May 1838 and work started soon after with an expanded team of computers. The Planetary reductions were completed in 1841 and the Lunar reductions by 1846. During the 1840s, computing time was also committed to the preparation for printing of both the reduced results of Fallow's observations together with various papers on Maclear’s measurement of La Caille’s Arc of Meridian at the Cape of Good Hope, as well as the calculations concerning the North American Boundary.
Richard Dunkin and his brother Edwin (who later went on to become Chief Assistant) were both taken on by Airy in August 1838. Their place of work, like that of the other computers, was in the Octagon Room in Flamsteed House. At that time, Edwin was just 17 years of age. In his autobiography A far off vision, he states that when he began, the hours were from eight in the morning until eight at night with an hour off for lunch and states that the long working hours were in part down to a decision made by those computers who had been taken on earlier in the year, who had reasoned that as they were hourly paid (from sixpence to tenpence an hour) the more hours they worked the more they would be paid. This worked out reasonably well in the summer months, but in the winter, once it had got dark, the artificial lighting was inadequate to facilitate efficient working. He goes on to state that Airy had also noticed the energy of the computers diminishing towards the evening and with their consent switched to a fixed monthly payment, for an eight hour day without a lunch break. Recent research suggests that although the working hours were reduced, the reason why they were so long to start with and the reason why Airy shortened them, is rather more compicated that Dunkin implies.
In 1841, the number of Computers employed on the reductions was 12. The following year it was 14. It then increased to 16 before gradually being diminished.
Later, in 1855, work began on reducing the Lunar Observations made between 1831 and1851. This work was published in 1859 and carried out under the supervision of John Lucas, who like Thomas and Breen before him was paid at a significantly higher rate than those under his charge.
Between 1911 and 1914, one or two computers were employed to determine the number of stars of different magnitudes in a series of photographs of the whole sky taken by John Franklin-Adams (See the Annual Reports of the Astronomer Royal to the Board of Visitors (1911-15) for more information). The project was initially funded by Franklin-Adams, then jointly by him and the Royal Society.
Meanwhile, back in 1842, Airy had sought permission to employ an additional assistant. Before this could be granted, he amended the request and asked instead to be authorised to employ ‘occasional computers’ to the same pecuniary value. The request was granted, and so began the regular employment of computers on a temporary and short term basis under such regulations as Airy might think fit. To start with, Airy seems to have simply redeployed some of the computers from the Lunar Reductions team on a somewhat ad hoc basis. As well as their computing work, some of the computers were also trained as stand in observers. In 1845, Airy had £120 to spend on their salaries. He was given a one off extra £120 in 1846 and the higher amount of £180 in 1847. Temporary or Supernumerary Computers continued to be employed on more or less the same basis for the best part of the next hundred years until 1936. The actual numbers varied from year to year. From 1848 to1859 they fluctuated between three and eight. They then increased slightly to between seven and twelve until Airy’s retirement in 1881. Meanwhile, by 1853, the working day had been shortened to eight hours including a lunch break 8.00 to12.00 and 13.00 to 16.00. These hours were later changed by Christie.
An employment pattern soon emerged with the posts of Computer being filled by competitive examination amongst 13 and 14 year olds from the local schools. Although there was no upper age limit to those who might be employed, the poor wages, temporary nature of the posts and a general lack of vacant posts at the assistant level, meant that most moved on relatively quickly. Examination for promotion to and within the Assistant Grade (for trial of competency) began for the first time after the fourth assistant Breen handed in his resignation in November 1858.
The splitting of the Assistants grade into first and second class assistant in 1872 coincided with the introduction of open competitive examinations administered by the Civil Service Commissioners and these were used to fill vacant posts at the lower grade. Entry to the examination was restricted to people of age 18 to 25 (CSC6/1/69). Therefore if a computer hadn’t obtained promotion by the age of 26, he would have no prospect of ever being taken on as a permanent member of staff at the Observatory. With vacancies at the Junior Assistant grade being rare and normally only arising when an assistant died or retired, some computers would have had virtually no chance of ever gaining promotion, no matter how good they were.
When the established post of second class assistant was replaced by that of established computer in 1896, the same age limits applied to those supernumerary assistants who might wish to apply, the only difference being that by then, the examinations were no longer fully open, but restricted to those already employed (or recently employed) at the observatory on a temporary basis. The same conditions applied for entry to the Junior Assistant grade when it replaced that of established computer in 1912. (RGO8/31)
The subjects of examination for the post of Junior Assistant were: 1) English composition, handwriting and spelling (composition being tested by an essay on an astronomical subject). 2) Elementary Mathematics (Plane Geometry, Algebra, Plane Trigonometry and Spherical Trigonometry). 3) Numerical multiplication, division, involution, evolution, solution of right-angled triangles (plane and spherical) by the use of Bruhn’s tables of logarithms. 4) Professional examination in the work of the branch of the Observatory in which the candidate had been employed. 5) (Optional), French and German translation from an astronomical periodical. To be considered, a candidate had to pass in the first four subjects to the satisfaction of the Civil Service Commissioners. (RGO 8/31)
By 1888, Christie had been Astronomer Royal for seven years and overseen a considerable expansion in the number of telescopes both deployed and planned. But the number of staff both permanent and temporary had remained essentially unchanged. Unable to secure funding for additional assistants, Christie did manage to secure an increase in the budget for temporary computers.
Extra computers were all very well, but what Christie really wanted was more assistants. To this end, he therefore made the decision to experiment with employing ‘Lady Computers’. Only women who had graduated at a University Ladies’ College were considered. Four such assistants were taken on in 1890: a Miss Clemes, together with Miss Rix and Miss Furniss from Newnham College Cambridge and Miss Everett from Girton College Cambridge. All four began work on 14 April (RGO7/29). Clemes appears to have left very quickly and Furniss who resigned in 1891 was replaced by Annie Russell (RGO7/29), a contemporary of Everett’s at Girton. Although older and considerably better educated than the Boy Computers, their pay and conditions were the same. But unlike the boys who were generally still living with their parents, the Lady computers had to find and pay for their own accommodation. Rix resigned in 1892 on health grounds, Everett secured a position at the Observatory in Potsdam in 1895. Russell resigned a few weeks later on 31 October and married her colleague E Walter Maunder at the end of the year.
Many modern commentators speak of Christie’s social innovation. But in truth, the employment of the Lady Computers was exploitative and little more than a stop-gap measure. By the time Russell resigned, the problem of insufficient numbers of established staff was about to be resolved and no more ladies were appointed. Indeed, those making enquiries were told ‘ladies are no longer employed at the Royal Observatory’. The next time women were employed at the Observatory was again as Computers and again out of necessity. But this time it was because of the staffing shortages caused by the First World War.
The next time women were employed at the Observatory was again as Computers and again out of necessity. But this time it was because of the staffing shortages caused by the First World War. Women continued to be employed as Computers until 1936 when the post was abolished, at which point, two of their number had been on the staff for over fifteen years.
See also:
Christie’s ‘Lady Computers’ – the Astrographic pioneers of Greenwich
Of the 40 boys recruited as Computers in the ten years from 1889 to 1899, 28 came from the Royal Hospital School (26 were Boreman Boys whose education was paid for by the Boreman Foundation), 10 from the Roan School, and 2 from elsewhere.
They were paid £3 per month, with an annual increment of 5 shillings per month. As in previous times, they were encouraged to qualify for observing certificates entitling them to participate in observing ‘duties’ at the telescopes. A certificate for a photographic instrument earned its holder an additional 5 shillings per month and a certificate for the Airy Transit Circle or Altazimuth 10 shillings per month. For a scheduled observing duty, a computer received nine pence ‘clear or cloudy’. If observations were actually made, the payment was a shilling for the first hour with an extra six pence for each additional hour, for the photographic telescopes. In the case of the Airy Transit Circle, the extra six pence was only awarded if 50 or more stars had been observed in RA and ZD. An observation of the occultation of a star by the Moon earned a shilling.
Recruitment after WW1 was made more difficult by the fact that the Masters at the schools from which boys were normally recruited would not recommend them to take up temporary posts, (the computers having to move on by the age of 26).
In 1891, Christie was authorised to take on an additional assistant. But he remained unsatisfied. The increasing reliance on the Temporary Computers to do work that in the past would have been done by assistants was stating to compromise the continuity of the Greenwich series of observations. By the time they had gained enough experience to become really useful, they hit the age bar and were required to leave. The problem was exacerbated by the fact that since 1873, all new second class assistants had been appointed by the civil service commissioners through open competition – a system that failed to ensure that candidates were qualified as observers.
Eventually in late 1895/1896, after two years of waiting on a decision from the government, a reform of sorts took place. Christie was granted a second Chief Assistant and the grade of Second Class Assistant (of which three of the five posts were vacant) was replaced by the two grades of Established Computer (6 posts) and Higher Grade Established Computer (2 posts). This increased his established staff from 11 to 15. In 1912, two new Assistant grades were created by renaming the posts of Higher Grade Established Computer and Established Computer as Junior Assistant (Higher Grade) and Junior Assistant. The pay scales remained the same except for a raising of the upper limit. From 1891, the vacancies on the permanent staff were filled by competitive examination from the Temporary Computers – a process that continued until 1936 when the post of temporary computer was abolished following the removal or the Royal Hospital School from Greenwich to Holbrook.
One consequence of Christie’s methods of recruitment was that between 1927 and 1936 all the Heads of Department were ex-computers. This was in complete contrast to the period 1904 to 1917, when all the Heads of Department had had no experience of being a computer, having been originally appointed directly to the post of Second Class Assistant (mainly as graduates) after competing in the Civil Service exams between 1872 and 1896. It was also in complete contrast to the First/Chief Assistants, who until the 1950s (with the exception of Dunkin) were exceptional maths graduates and tended to be recruited into post more or less straight from university. All except Atkinson (who graduated from Oxford), were wranglers i.e. had first class degrees in mathematics from Cambridge. Main was sixth wrangler (sixth in his class), Stone was fifth wrangler, Christie was fourth wrangler, Turner and Dyson were both second wranglers and their successors Cowell and Eddington both senior wranglers (top of their class). In 1910, rankings ceased to be made public, so the rankings of the remainder are unknown. This manner of selecting Chief Assistants was criticised by David Gill, Her Majesty’s Astronomer at the Cape of Good Hope (1879–1907), who in 1897 wrote: ‘They enter into chief positions where they have to superintend men who know much more about practical work than they do, and they have to pick up what they can of a hard and fast hide-bound system – which they are taught to regard as unquestionably superior to all others’.
In 1901, a third of all the temporary computers left in a period of just five months putting great stress on the Observatory’s regimes. By contrast, amongst the established staff, the only member to leave between 1896 and 1908 was Dyson, who resigned to take up the post of Astronomer Royal for Scotland.
Dyson came back to Greenwich as Astronomer Royal in 1910. When he left office in 1933, as well as his two chief assistants, he had nine other senior members of staff. Of these, eight (Bowyer, Cullen, Davidson, Edney, Furner, Melotte, Stevens and Witchell) were already established members of staff when he arrived as Astronomer Royal in 1910. And of those eight, four (Bowyer, Davidson, Edney and Furner) were already working at the Observatory as Boy Computers when he first arrived as Chief Assistant in 1894, with two, (Melotte and Witchell) being taken on soon after.
In 1936, two key reforms took place – assistants began to be recruited from outside, and the post of Temporary Computer began to be phased out (the process being completed in 1937). The temporary computers (of which there were 16 in 1935/6) were replaced by permanent posts: One Junior Assistant (Higher Grade), bringing the total up to five, five Junior Assistant posts (bringing the total to fifteen), twelve Clerical Assistants (originally called Writing Assistants) and a typist. In terms of pay, the grades of Junior Assistant and Clerical Assistant were indistinguishable. The distinction was that Junior Assistants had observing duties (for which they were paid an extra allowance) and Clerical Assistants did not. For a variety of reasons, Spencer Jones was of the view that it was ‘not desirable that female staff should be expected to share the observing.’ (RGO8/31). Because of this, although six of the sixteen temporary computers in 1936 were women, all the Junior Assistant posts (at both levels) were filled by men, and all the Clerical Assistant posts by women.
By comparison, when the Nautical Almanac Office was placed under the direction of the Astronomer Royal in early 1937, a woman (Marion Rodgers) already occupied one of its three Junior Assistant posts. The following year, the Office recruited a woman at Assistant Level and promoted two more to be Junior Assistants at the lower grade. Change did eventually take place in the wider Observatory, but not until 1939/40 when the Time Department needed to be enlarged as a result of the war time evacuation. On this ocassion, Miss CM Lark was appointed as a lower grade Junior Assistant, (seemingly an outside appointment). This was followed in 1942/3, by two of the women Clerical Assistants (one of whom was originally based in the Nautical Almanac Office) being ‘promoted’ (the term used by the Astronomer Royal) to the lower grade of Junior Assistant.
Information extracted from the account books (RGO6/531–543). This section, should be read in conjunction with the notes above,
1834 Feb 27 – 1836 Feb 06 John Glaisher
1836 Apr 14 – 1840 Feb 29 John William Thomas
1836 Jul 16 – 1838 Jun 30 John Hartnup
1838 Jun 16 – 1848 Mar 31 Hugh Breen (Snr), died 1 Apr 1848
1838 Jul 25 – 1839 Dec 31 Foley (FJ?)
1838 Oct 15 – 1839 Jun 30 John Putt
1838 Aug 06 – 1844 Feb 29 George Witherby (breaks in service?)
1838 Aug 21 – 1840 Oct 31 Edwin Dunkin, promoted to Magnetic Assistant
1838 Aug 21 – 1847 Aug 7 Richard Dunkin
1838 Dec 10 – 1844 Aug 10 Hugh Breen (Jnr), promoted to Magnetic Assistant
1839 Jan 14 – 1839 Nov 18 Bowman
1840 Aug 28 – 1846 Aug 31 James Breen
1840 Dec 01 – 1845 Oct 31 Thomas Sturgis Downs* (breaks in service?),
1841 Dec 06 – 1847 Jan 31 Charles Todd (breaks in service?)
1841 Aug 01 – 1843 Jan 31 James Mackay
1841 Aug 01 – 1843 Nov 21 Richard Harris
1841 Aug 01 – 1848 Mar 31 Edward Hanson (Snr)
1841 Aug 01 – 1844 Feb 29 Charles H Martin
1841 Aug 01 – 1843 Dec 29 George Fryer
1841 Aug 01 – 1845 Nov 30 Thomas Eastmure
1841 Aug 01 – 1848 May 31 William Ellis (RGO6/75/185 gives start date as Aug 2)
1842 Jan 17 – 1844 Nov 30 Edward Hanson (Jnr)
1842 Jan 17 – 1842 May 31 James (M?) Butcher
1843 Mar 01 – 1844 Nov 11 John H(?) Morgan
1843 Feb 01 – 1847 Jan 31 BG Carter
1846 Apr 13 – 1846 Sep 30 J Harner(?) Hamer (?)
1846 Apr 21 – 1847 Jan 31 R Burchett
1846 Apr 22 – 1846 Oct 31 F Waters
1847 Apr 20 – 1848 May 31 R Burchett
1847 Sep 24 – 1848 May 31 TC Lawrence
1847 Nov 05 – 1848 May 31 Charles S Arney (?)
1847 Nov 10 – 1848 May 31 Daniel McCarthy
* RGO6/75/185 gives starting date at Observatory as 15 Oct 1840
For more information on the Breens, see A Family of Astronomers - The Breens of Armagh by Bruck, M. T. & Grew, S
This list has been compiled from the introduction to the annual volumes of Greenwich Observations. Each introduction lists only the Computers who observed in that particular year. As such, the list below omits not only those Computers who were unqualified to observe, but also those who were qualified, but not assigned to any observing duties in that particular year.
1842–1843 Richard Harris
1842–1844 Hugh Breen (Jun)
1845 Edward Hanson
1845–1852 William Ellis (excluding 1848)
1846 James Breen
1846 Mr Todd
1849–1852 John W Breen
1852–1854 James S Yair (excluding 1853)
1852–1854 George Strickland Criswick
1853–1854 Frank Taylor
1854–1856 Alexis Albert de Lajugie
1854–1855 William Thynne Lynn
1855–1857 Arthur Bowden
1855–1857 Henry Taylor
1855–1856 Henry Todd
1856–1858 James Carpenter
1857–1860 William Piper Wakelin
1858–1859 Wyvill James Christy
1859–1863 Mondeford Reginald Dolman
1859–1860 Charles George Talmage
1859 Henry Charles Criswick
1860–1868 Ernest Augustus John Kerschner
1860–1861 Arthur Sladen Davis
1860 Henry Storks Eaton
1860–1861 William George Newcomb
1860–1864 Edward Roberts
1861–1865 Thomas Henry Chapell
1862–1863 William Carpenter Nash
1864–865 John Plummer
1864–1869 Thomas Wight
1865–1868 William Plummer
1865–1874 Henry James Carpenter
1867–1870 Gabriel Keating
1869–1873 Joseph Pyle Potts
1869 Jesse Emerson Sanderson
1870–1875 Charles Augustus Jenkins
1871–1874 Gabriel Goldney
1872–1875 William James Harding
1874–1879 Walter Wickham
1874–1879 Edward Graham
1875–1877 William Pritchard Pulley
1875–1877 Walter David Laird
1876 Robert Thomas Pett
1876–1883 Harry Pead (JWH Pead)
1876–1878 William Baker
1876–1879 Benjamin Dennison
1876–1878 James William Fenner Bromley
1876–1877 Frank Disney
1877–1891 John Power
1877–1879 William Henry Robinson
1878–1880 George William Pearce
1878–1882 Henry Thomas James
1879–1881 Thomas Michael Plucknett
1880–1890 Joe Alfred John Pead
1881–1885 Bertram Bennett
1881–1883 WH Cox
1883–1890 S Dolman
1884–1885 F Wilkins
1885–1890 R Woodgate
1885–1889 FC Robinson
1885–1886 HF Willoughby
1886–1889 TF Fisher
1887–1888 FC Barrow
1887–1889 AE Pilkington
1888–1889 HA Wise
1889–1891 W Russell
1889–1890 A Cochrane
1889–1896 HH Furner
1889–1893 AP Miskin
1890 S Temple
1890–1895 C Martin
1890–1897 H Appleyard
1891–1895 Miss A Everett
1891–1892 Miss EM Rix
1891–1895 C Davidson
1891–1900 Charles Craven Lacey
1891–1894 J Gillingham
1891–1895 Miss A Russell
1892–1900 R Cheeseman
1892–1895 D Edney
1893–1895 W Bowyer
1893–1897 GF Johns
1893–1894 OT Tuck
1895 RF Rendell
1895–1897 EH Banks
1895–1900 F Turner
1895–1902 FG Showell
1895–1900 AJ Wilkin
1895–1901 WM Witchell
1896–1902 W Stevens
1896–1897 JA West
1897–1901 J Storey
1898–1902 P Melotte
1898–1902 G Bischlanger
1899–1901 WA Gummer
1901–1902 W Stiles
1901–1903 TG Staples
1901 AL Wood
1902–1906 HW Moore
1902–1907 R Fowler
1902–1904 JW Hicks
1903–1906 RT Cullen
1903–1910 S Daniels
1903–1906 EV Vagg
1904–1907 AW James
1904 G Giraud
1905–1911 J Shepperd
1905–1912 BD Evans
1906–1914 H Acton
1906–1910 Witney
1906–1910 G Cody
1907–1909 HE Green
1908–1914 F Jeffries
1909–1910 A Rotherham
1910–1914 WG Davies
1911–1914 G Bartle
1911–1914 A Smith
1912–1914 WG Percival
1912–1914 EA Chamberlain
1913–1914 PJ White
1913 WT Lord
1914 HW Newton
John Lucas, age 45 since Dec 1855
Henry Charles Criswick, age 22 since 1 March 1854
Edward Hanson, age 63 since June 1854, but previosuly employed on 2 Aug 1841
William Carpenter Nash, age 19 since Feb 1856
Edward Beresford Hanson, age 33 since 25 Feb 1856, but previously employed on 17 Jan 1842
John Richard Lucas, age 17 since 25 Feb 1856
Charles George Talmage, age 19 since 17 Mar 1856
Mondeford Reginald Dolman, age 17 since 17 Mar 1856
Malcolm Jason Brown, age 18 since 19 April 1856
John Howe, age 16, since 23 Sep 1858
Ernest Augustus John Kerschner, age 19 since 19 Oct 1859
The names of the computers in this list have been extracted from the published volumes of the Results of the Magnetical and Meteorological Observations made at the Royal Observatory, Greenwich, which from 1881 onwards listed the names of the computers who worked in the department. With the exception of Thomas Downs*, who the 1852 volume tells us was employed as a computer between 1849 and 1852 none of the pre 1881 computers within the department are listed by name. The years referred to are calendar years.
In 1880, there were normally 3 or 4 computers (names unknown) in the department. It is likely that they included the first two or three persons named in the list.
1881–1884 Greengrass, John A
1881–1885 Hugo, William
1881–1892 McClellan, Ernest E
1881–1881 Stafford, George W
1881–1881 Jeffrey, Edwin
1881–1882 Sanders, William J
1882–1883 Finch, Frank
1883–1885 Robinson, Fredrick C
1884–1891 Finch, Edward
1885–1885 Willoughby, Herbert F
1885–1885 Hope, Frank (?typo for Hope, Francis HW? See 1885)
1885–1885 Letchford, Frank H (?typo for Letchford Francis H? See 1885)
1886–1890 Hope, Francis HW
1886–1888 Letchford, Francis H
1889–1892 Tweed, Richard R
1889–1893 Allworth, George A
1890–1895 Claxton, Thomas F
1891–1895 MacManus, Henry James
1892–1897 Walter, Albert
1892–1899 Beadle, Percival D
1893–1894 Wenborn, Ernest William
1894–1899 Marchant, Thomas Percy
1895–1896 Edney, David JR (promoted to Established Computer in the Department)
1895–1899 Davies, Cedric AF
1897–1900 Jeffries, Charles William
1899–1901 Clarke, Thomas Henry
1898–1901 Ralph, Charles William
1898–1906 Showell, Albert Edward
1901–1908 Parkinson, Wilfred C
1901–1902 Perry, William James
1901–1903 Burkett, William Wood
1902–1907 Barrett, Henry George Scott
1903–1903 Staples, Thomas G
1904–1907 Dauncey, Arnold F
1906–1911 Kirby, Edward
1907–1907 Quarterman, Henry JS
1907–1914 Timbury, William H
1907–1910 Loomes, Arthur E
1908–1911 Richardson, Ernest L
1910–1914 Divers, Sydney T
1911–1913 Brown, Frederick
1911–1914 Showell, Harold George
1913–1914 Mitchell, Harry Joseph
1914–1915 Walden, Ralph
1914–1915 Hills, Alfred W
1914–1915 Leary, Edward
1915–1916 Wright, HR
1915–1916 Van Dingenen, T (Belgian refugee)
1915–1916 Dagonnier, R (Belgian refugee)
1915–1916 Brenez, G (Belgian refugee)
1916–1918 Palmer, SW
1916–1923 Wells, GF (promoted)
1916–1923 Tibbitts, EH (went to Cape, retired Nov 1961 (1962 Report p.21)
1916–1917 Lang, Miss ED
1917–1937 Clack, Miss EW
1923–1926 Burridge, LC
1923–1930 Oliver, D
1926–1927 Melotte, LD
1928–1932 Reece, FW
1930–1933 Harrild, N
1933–1937 Dennis, WJH
1933–1937 Deeks, FE
* Originally taken on on 15 October 1840 to work as a computer on the Planetary & Lunar reductions, Downs was appointed as an Assistant in the Magnetical & Meteorological Department in late October 1845. When the work was scaled back in 1849, he was retained as a computer, being promoted back to the role of assistant in the Department in 1852.
1890–? Miss Clemes
1890–1891 Harriet Maud Furniss (resigned Jan 1891 to teach)
1890–1892 Edith Mary Rix (resigned March 1892 for health reasons)
1890–1895 Alice Everett (went to Potsdam Observatory)
1891–1895 Annie Russell* (resigned 31 Oct 1895 to marry E Walter Maunder
*Resigned due to restrictions on married women working in public service. Returned during the war as a volunteer in Jan 1916, continuing it this role until re-employed as a computer in 1919/20.
This list has been compiled from the listings in the introductions to the Greenwich Magnetical and Meteorological Observations together with the Annual Reports of the Astronomer Royal to the Board of Visitors. Each report normally listed only those individuals who were employed at the Observatory at the end of the reporting period on the date (10 May for 1909–1931 and 30 April for 1932–1936). The reports for 1917 and 1918 state that one lady computer was employed, but do not give a name. When the post of Supernumerary Computer was abolished in 1936, of the six women computers: one resigned, four were ultimately regraded as Clerical Assistants and one was regraded Established Typist.
1916–1917 Miss ED Lang (mag & met)
1917–1937 Miss EW Clack (mag & met), resigned Feb 1937
1920–1924 Miss Faulkner (Thompson Equatorial)
1920–1920 Miss Furner (Thompson Equatorial)
1920–1920 Mrs Maunder (Photoheliograph)
1921–1936 Miss Jeffries (Thompson Equatorial), became Clerical Assistant
1921–1924 Miss Crommelin (Photoheliograph)
1925–1929 Miss Jackson (Photoheliograph)
1930–1936 Miss French (Thompson Equatorial), became Clerical Assistant)
1930–1933 Miss Bonnett (Astrographic Equatorial)
1930–1936 Miss Cumberledge (Astrographic Equatorial), became Clerical Assistant
1933–1936 Miss Brickman (Secretariat & Library), became Established Typist
1934–1936 Miss Moore (Astrographic Equatorial), became Clerical Assistant
1934–1934 Miss Fine (Photoheliograph & Spectrohelioscope)
1935–1935 Miss Powell (Transit Circle & Zenith Telescope)
The first list has been compiled from the Annual Reports of the Astronomer Royal to the Board of Visitors. 1909 was the first year the names of the Supernumerary Computers were included in the annual reports, so many of the individuals at the start of the list would have arrived at the Observatory at an earlier date. The post of Supernumerary Computer began to be phased out in 1936, being finally abolished in 1937. Each report normally listed only those individuals who were employed at the Observatory at the end of the reporting period on the date (10 May for 1909–1931 and 30 April for 1932–1936). Some individuals may have started work in the year before that which is shown or left their position in the year after. Any individual who was appointed and subsequently resigned or gained promotion in the same reporting period would not have been included. For the years 1915, 1917 and 1918, only the names of those away on miltary service were reported, with no information being listed at all in 1916. The number of Computers actually working at the Observatory was reported as eleven in 1915, ten in 1917 (of whom just one (RJ Barrett?) had been at the Observatory in August 1914), and six in 1918. These numbers probabally did not include Robert Jonckheere, a Belgian refugee and Director of the Lille Observatory, who worked as an assistant, but was paid as a computer. The report for 1916 states that during that reporting year, six Belgium refugees had been employed of whom two, who were wounded soldiers, remained (Jonkckheere was probabally omitted from this list too). As a result of the method of reporting, any individual who was on the staff on the reporting date, but only worked between 1915 and 1918, will not have had their name published and will not appear in the first of the three lists below. Those who come in this category, but also worked in the Magnetical and Meteorological Department had their names published with the Observations and are listed separately in the second of the three lists. The third of the lists has been extracted from RGO8/73 and contains the names of those who were recorded as being on the payroll during 1916.
1909–1909 T Wheate
1909–1910 Kemp
1909–1910 Rotherham
1909–1910 Daniels
1909–1911 Acton
1909–1909 Cody
1909–1912 Jeffries
1909–1909 Witney
1909–1912 Green
1909–1911 Shepperd
1909–1909 Higgitt
1909–1909 Oake
1909–1911 Peirce
1909–1912 Passfield
1909–1910 Richards
1909–1910 A Wheate
1909–1914(+?)Smith
1909–1911 Lait
1909–1911 Saville
1909–1911 Kirby
1909–1913 Timbury
1909–1910 Loomes
1909–1910 Richardson
1909–1910 Lyne
1910–1919 Percival (War Service 1914/5–1918)
1910–1918 Davies (War Service 1914/5–1918)
1910–1914(+?)Bartle
1910–1912 Newton
1910–1911 Leary
1910–1913 Lord
1911–1919 Chamberlain (War Service 1914/15–1918)
1911–1918 Davis (War Service 1914/5–1918)
1911–1918 White (War Service 1914/15–1918)
1911–1920 Barton (War Service 1914/15–1918)
1911–1919 Divers (War Service 1914/15–1919)
1911–1913 Brown
1911–1916 Kilby (War Service 1914/15–1916 (Killed in action))
1911–1914(+?)Entwistle (Franklin-Adams 1911–12)
1911–1920 Lambert (Franklin-Adams 1911–12, War Service 1914/15–1918)
1912–1913 Maddock
1912–1919 Sims (War Service 1914/15–1918)
1912–1919 Martin (War Service 1916/7–1918)
1912–1918 Berry (War Service 1914/15–1918)
1912–1914(+?)HG Showell
1913–1914(+?)Dew
1913–1913 Flint
1913–1919 Whitaker
1913–1919 Vaizey (War Service 1914/15–1918)
1913–1919 Symms
1913–1918 Perry (Franklin-Adams 1913–14, War Service 1914/15–1918)
1914–1919 Baldwin (War Service 1914/15–1918)
1914–1914(+?)WF Showell
1914–1914(+?)Mitchell
1914–1914(+?)Walden
1916–1923 GF Wells (b. 7 Apr 1901, started 11 Jul 1916 (RGO8/31))
1916–1923 EH Tibbetts (b. 15 Nov 1901, started 4 Dec 1916 (RGO8/31))
1917–1936 Miss EW Clack (started 6 Mar 1917 (RGO8/31)
By 1917–1918 Cogswell (1917–1918 War Service)
By 1918–1918 Howick (1918 War Service)
By 1918–1919 Sharpe (1918 & 1919 War Service)
1918–1922 GW Rickett (b. 16 Jun 1903, started 18 Mar 1918 (RGO8/31))
By 1919–1920 Barrett (War Service in 1919)
By 1919–1920 Palmer (War Service in 1919)
1919–1924 Miss D Faulkner (started 2 Dec 1919 (RGO8/31))
1920–1920 Miss Furner
1920–1920 Mrs Maunder
1920–1929 RH Smith (b. 12 Sep 1902, started 1 Jan 1920 (RGO8/31))
1920–1924 EC Longley (b. 6 Nov 1904, started 16 Feb 1920 (RGO8/31))
1920–1924 FL Kinnear (b. 13 Dec 1904, started 16 Feb 1920 (RGO8/31))
1920–1936 Miss F Jeffries (started 1 Sep 1920 (RGO8/31))
1921–1921 Woolford
1921–1924 Miss A Crommelin (started 17 Jan 1921 (RGO8/31))
1921–1928 L Fellows (b. 1 Sep 1905, started 2 May 1921 (RGO8/31))
1921–1925 W Scott (b. 17 Jan 1905, started 2 May 1921 (RGO8/31))
1921–1927 HH Cox (b. 14 Aug 1905, started 16 May 1921 (RGO8/31))
1922–1923 HF Finch (b. 29 May 1904, started 1 Dec 1921 (RGO8/31))
1922–1928 CL Davies (b. 31 Oct 1905, started 16 Jan 1922 (RGO8/31))
1923–1926 Alcock
1923–1929 Oliver
1924–1926 Stephens
1924–1928 Rood
1924–1929 Ware
1924–1925 Collings
1924–1926 Burridge
1925–1929 Bennett
1925–1927 Sizer
1925–1928 Rickerby
1925–1929 Miss Jackson
1926–1936 Slator
1926–1929 McKenzie
1927–1934 Blackwell
1927–1928 Brown
1927–1929 Judd
1927–1927 LS Melotte
1928–1930 Whybrow
1928–1936 Harris
1928–1932 Reece
1928–1928 Daily
1929–1934 Malyon
1929–1935 Diston
1929–1934 Larkin
1929–1936 Shortland
1929–1936 Dennis
1930–1936 Grimwood
1930–1936 Stockwell
1930–1934 Deeks (omitted from 1935 report)
1930–1936 Rudd, John Leslie
1930–1936 Miss French
1930–1933 Miss Bonnett
1930–1936 Miss Cumberledge
1930–1934 Howes
1930–1932 Harrild
1931–1933 Carter
1933–1936 Miss Brickman
1934–1936 Miss Moore
1934–1934 Miss Fine
1935–1935 Miss Powell
1935–1936 Laurie
1935–1935 Grimwood
1936–1936 FL Rudd
Additional names for those who worked in the Mag & Met department and started work between 1914–1918, (extracted from the introductions to the Magnetical and Meterological Observations). Names of those starting in other departments during this period are not available. Unlike the list immediately above, the dates refer to calendar years rather than reporting years. Names marked with a star (*) also have a less full entry in the list above.
1914–1915 Ralph Walden*
1914–1915 Alfred W Hills
1914–1915 Edward Leary
1915–1916 HR Wright
1915–1916 T Van Dingenen (Belgian Refugee)
1915–1916 R Dagonnier (Belgian Refugee)
1915–1916 G Brenez (Belgian Refugee)
1916–1918 SW Palmer
1916–1923 GF Wells* (promoted to Junior Assistant 17 May 1923)
1916–1923 EH Tibetts* (resigned 23 May 1923)
1916–1917 Miss ED Lang
1917–1937 Miss EW Clack* (resigned Feb 1937)
List of Computers employed in 1916, compiled from RGO8/73. Names marked with a star (*) also can also be found in the first of the two lists above.
Martin EG* started 4 Sep 1911 age 14 (Thompson certificate)
Barrett RJ* started 27 Jul 1914 age 15
Cogswell CF* started 14 Sep 1914 age 15
Howick AA* started 8 Feb 1915 age 14
Sharpe EJ* started 3 May 1915 age 15
Metters FEM started 1 Jan 1916 age 16
Jonckheere R Director of the Lille Observatory, Belgian refugee, started 16 Oct 1914
Hanchire A Belgian refugee, started 29 June 1915 (resigned 13 May 1916)
Verhaygen H Belgian refugee, started 18 Oct 1915
Lyne, Harold VW started 27 June 1916 age 15 (photoheliograph certificate)
Brotchie, William started 4 Dec 1916 age 15 (ZD certificate)
With a small number of exceptions (some of the Lady Computers employed by Chrisite), all the Computers taken on from 1872 onwards were entered in a specially printed and bound book titled Register of Computers (RGO7/266). Columns were headed as follows: Name, Date of Birth, School, Date of Entry, Department, Observing Certificates, Date of Leaving, Reason for leaving and Remarks.
At the end of the volume there is a list of 92 Computers taken on between 1836 and 1872 which it states were ‘copied from list in M11 Miscellaneous’. It is reproduced below. For reasons unknown, the list is not definitive as certain of the names listed above have been omitted; for example, Foley and Hugh Breen Jnr. It does however contain the names of several individuals whose names are not included in any of the lists above.
Thomas JW
Hartnup J
Dunkin R
Putt HH
Withersby G
Bowman H
Putt J
Downes T
Breen H
Dunkin E
Mackay J
Martin CH
Hanson E senr
Eastmure T
Fryer G
Breen J
Harris R
Ellis W
Todd C
Hanson E Junr
Britcher W
Morgan JH
Carter BG
Burchett R
Anney [Arney?] CS
Breen JW
Lawrence TE
McCarthy A
Stoneham A
Saunders CF
Escott G
Bullen R
Yair JS
Criswick GS
Taylor F
Rogerson W
Montgomery JS
Welsh EJ
De la Jugie A
Criswick HX
Lynn WJ
Carpenter J
Taylor H
Bowden A
Keel SH
Todd H
Hallam EJ
Nash WC
Wakelin WP
Christy WJ
Talmage CG
Dolman M
Howe J
Eaton HS
Kerschner E
Davis AS
Roberts E
Chapelle JH
Newcomb WG
Adcock W
Jones CW
Escott FA
Harding A
Trapand CP
Plummer J
Wright J
Carpenter HJ
Trapand F
Wright J
Jones EG
Plummer W
Keating G
Stevenson G
Farncomb GW
Sanderson JE
Schultz GL
Taylor F
Brown MD
Laing H
Lucas JR
Carpenter E
Cotter VE
Jenkins CA
Marriott W
Barber J
Goldney S
Harding W
Cross Rob
Schultz WA
Bishop W
Schults G
Potts J
A list of the names entered from 1872 onwards is currently in preparation.
The grades of Established Computer and Established Computer (higher grade) existed only between 1896 and 1912. The lists below are complete and have been compiled from the Annual Reports of the Astronomer Royal to the Board of Visitors.
Assimilated in 1896 as Established Computers (higher grade) from the Second Class Assistant grade:
Bryant
Crommelin
Appointed as Established Computer (higher grade) and year of appointment:
1904 Davidson
Established Computers and year of appointment:
1896 Bowyer
1896 Davidson
1896 Rendell
1897 Edney
1897 Furner
1902 Storey (resigned end of May 1908, having been appointed assistant at Edinburgh)
1902 Witchell
1903 Melotte
1903 Bischlanger
1903 Stevens
1904 Burkett
1904 J Evans
1906 Vagg (died before taking up appointment)
1907 Cullen
1909 B Evans
Thomas JW |
Hartnup J |
Dunkin R |
Putt HH |
Withersby G |
Bowman H |
Putt J |
Downes T |
Breen H |
Dunkin E |
Mackay J |
Martin CH |
Hanson E senr |
Eastmure T |
Fryer G |
Breen J |
Harris R |
Ellis W |
Todd C |
Hanson E Junr |
Britcher W |
Morgan JH |
Carter BG |
Burchett R |
Anney [Arney?] CS |
Breen JW |
Lawrence TE |
McCarthy A |
Stoneham A |
Saunders CF |
Escott G |
Bullen R |
Yair JS |
Criswick GS |
Taylor F |
Rogerson W |
Montgomery JS |
Welsh EJ |
De la Jugie A |
Criswick HX |
Lynn WJ |
Carpenter J |
Taylor H |
Bowden A |
Keel SH |
Todd H |
Hallam EJ |
Nash WC |
Wakelin WP |
Christy WJ |
Talmage CG |
Dolman M |
Howe J |
Eaton HS |
Kerschner E |
Davis AS |
Roberts E |
Chapelle JH |
Newcomb WG |
Adcock W |
Jones CW |
Escott FA |
Harding A |
Trapand CP |
Plummer J |
Wright J |
Carpenter HJ |
Trapand F |
Wright J |
Jones EG |
Plummer W |
Keating G |
Stevenson G |
Farncomb GW |
Sanderson JE |
Schultz GL |
Taylor F |
Brown MD |
Laing H |
Lucas JR |
Carpenter E |
Cotter VE |
Jenkins CA |
Marriott W |
Barber J |
Goldney S |
Harding W |
Cross Rob |
Schultz WA |
Bishop W |
Schults G |
Potts J |
© 2014 – 2024 Graham Dolan
Except where indicated, all text and images are the copyright of Graham Dolan