Person Tennyson D'Eyncourt; Sir; Eustace Henry William (1868 - 1951); naval architect Tennyson D'Eyncourt Eustace Henry William Sir naval architect Sir Eustace Henry William Tennyson D' Sir Eustace Henry William Tennyson Eyncourt D'Eyncourt 1868 - 1951 British Male Hadley House, Barnet, Hertfordshire, England 01 April 1868 18680401 His business premises, 168 Ashley Gardens, Victoria, London, England 01/02/1951 19510201 Burial: Brookwood Cemetery, London Necropolis, Brookwood, Surrey, England.

Naval architect Shipbuilding Education: Browning's School at Thorpe Mandeville, Northamptonshire; Charterhouse. Career: Apprenticed at the Elswick shipyard of Armstrong, Whitworth & Co (1880s); naval architect at the Fairfield Shipbuilding and Engineering Company, at Govan, Glasgow (1898); returned to Armstrong, Whitworth & Co (1902); undertook consultancy work for the Turkish government, reporting on the conditions of its navy, earning the Order of the Medjide (third class) (1904); director of naval construction with the Royal Navy, where he pioneered new forms of shipbuilding (1912); Chairman of the Landship Committee, a collaborative assembly of engineers and officers for the purpose of designing a vehicle capable of crossing No Man’s Land (1915); resigned from the Admiralty (1924); rejoined Armstrong, Whitworth & Co (1924); joined the board of Parsons Marine Steam Turbine Company (1928-1948); retired to Carters Corner Farm, near Halisham, Sussex (1948). Memberships: North-East Coast Institution of Engineers and Shipbuilders (President 1925-1927). Royal Institution of Naval Architects (VP 1916 and honorary VP 1935). French Académie de Marine Honours: CB 1915; KCB 1917; Bt 1930 Parents: Louis Charles Tennyson-D'Eyncourt (1814–1896), metropolitan magistrate, and Sophia (d. 1900), daughter of John Ashton Yates, of Dinglehead, Lancashire. Spouse: Janet, daughter of Matthew Watson Finlay of Langside, near Glasgow (1898). Children: One son and one daughter. Celebrated for the design and construction of some of the most famous British warships. Chaired the Landship Committee which produced the first military tanks to be used in warfare. Fellow 12/05/1921 53 Joseph John Thomson Henry John Oram Alan Archibald Campbell Swinton John Isaac Thornycroft George Beilby Henry Selby Hele Shaw Ernest George Coker [John William Strutt] Rayleigh Henry Bradwardine Jackson Robert Edmund Froude Herbert Jackson Joseph Petavel W E Daldy Richard Threlfall Richard Tetley Glazebrook Dugald Clerk Sources: Bulloch's Roll; DNB Obituaries: Obituary Notices of Fellows of the Royal Society 1950-1951 vol 7 pp 341-354, plate, by C S Lillicrap 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 Anglo American Cataloguing Rules (second edition) rules for double barrelled and compound surnames https://royalsocietypublishing.org/doi/10.1098/rsbm.1951.0005 https://royalsocietypublishing.org/action/doSearch?ContribRaw=Tennyson+D%27Eyncourt%2C+Eustace+Henry+William 1 Apr 1868 - 1 Feb 1951 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 30/08/2024 as part of the Name Authority Project update. NA1156 21/11/2001 Andyg Pmab 08/09/2025 RS_NET\VirginiaM Yes e6696377-c52e-47ad-a19c-6ba9feb4982c