Person Harker; John Allen (1870 - 1923); physicist and engineer Harker John Allen physicist and engineer 1870 - 1923 British Male Alston, Cumber land, England 23 January 1870 18700123 Highgate, London, England 10/10/1923 19231010 Cremation: Golders Green Creamtorim (13 October 1923)

physicist and engineer Engineering Chemistry Physics Education: Stockport Grammar School; University of Manchester (Owens College); elected Dalton scholar in chemistry (1891); Berkeley MSc (1892); Tubingen PhD Career: Spent time in France working with Moissan on electric furnaces; and in collaboration with Chappuis carried out a classic comparison of the gas and platinum thermometer scales (1900); worked alongside Sir Richard Glazebook (FRS 1882) in setting up the National Physical Laboratory in its first home at Kew; chief of the thermometry branch of the Physics Department; produced a series of important scientific papers, mostly on high temperature measurement (1900-1910); delegate of the British Government at the International Petroleum Congress at Vienna (1912); worked in collaboration with WF Higgins, on flash-points of oils; worked on thermionics of high temperature furnaces, atopic on which he gave a Faraday evening lecture at the Royal Insitution; temporary superintendent at Eskdalemuir Observatory (1913); lent to the Inventions Department of the Ministry of Munitions, by the National Physical Laboratory, becoming director of the research laboratory, responsible for the organisation of the work of the Nitrogen Products Committee. Visited USA and Canada in this capacity (1914-1918); received the O.B.E. in recognition of his War services; returned to Teddington for a brief period prior to setting up as a consulting engineer with Dr. J. F. Crowley in Westminster (1918-onwards). Memberships: VP of the Faraday Society Member of Council of the Physical Society Honours: OBE Parents: Rev. John Harker, Congregational minister Spouse: Ada, the daughter of the late Thomas Richardson, of Alston. Children: Two sons and three daughters. Fellow 05/05/1910 40 William Arthur Bone, William Watson; Dugald Clerk Rayleigh; George Carey Foster; Arthur Schuster; Arthur William Rucker; Richard Tetley Glazebrook; Charles Chree; Harold Baily Dixon; John Perry; Richard Threlfall; Joseph Wilson Swan Sir Richard Glazebrook (FRS 1882) and Sir Robert Robertson.(FRS 1917) Dr Thomas Edward Stanton (FRS 1914) attended his funeral representing the Royal Society. Sources: Bulloch's Roll; Nature Obituary by G.W.C. Kaye [URL: https://www.nature.com/articles/112629a0; last accessed: 14/02/2024] Obituaries: Proc Roy Soc Series A 1924 vol 105 pp xi-xiii signed by R T G International Standard Archival Authority Record for Corporate Bodies, Persons and Families - ISAAR(CPF) - Ottawa 1996 ISBN 0-9696035-3-3 National Council on Archives, Rules for the Construction of Personal, Place and Corporate Names, 1997 https://royalsocietypublishing.org/action/doSearch?ContribAuthorRaw=Harker%2C+John+Allen 23 Jan 1870 - 10 Oct 1923 The past Fellows entries are under continuous revision. If you have queries or additional information to contribute, please contact Library@royalsociety.org. Content in external sources is not controlled by the Royal Society and historical sources may include content that is now unacceptable. Reviewed on 14/02/2024 as part of the Name Authority Project update. NA1231 21/11/2001 Andyg Pmab 17/03/2026 RS_NET\VirginiaM Yes 60865b61-0a59-4590-8e77-a7e88b9cdae2