active 1904-1948, optical instrument maker (spectroscopes etc.), London, England Adam Hilger Limited 1904 - 1945
1903-1922, 1963-present, railway company and heritage railway, Wales Welshpool & Llanfair Light Railway 1903 - 1922
1897-1948, optical, mathematical & philosophical instrument maker, London, England Ross Limited 1897 - 1948
1900-1995, manufacturer of earthenware; manufacturer of majolica, Stoke on Trent, England Grimwades Limited 1900 - 1995
1906-1971, car manufacturer; aero engine manufacturer, Derby; Bristol, England, British Rolls-Royce Limited 1904 - 1973
1897-1974, physicist; government and military adviser, English; British Blackett, Baron Blackett, Patrick Maynard Stewart 1897 - 1974
active 1897-1968, laboratory apparatus and instrument maker, London, England Baird and Tatlock (London) Limited 1897 - 2012
1898-1985, graphic artist and portrait painter, Newcastle; English Gilroy, John Thomas Young 1898 - 1985
1897-1958, theoretical physicist, mathematical physicist, Cambridge, England, British Hartree, Douglas Rayner 1897 - 1958
1897-1927, Engineering Company, Elswick, Newcastle upon Tyne Armstrong, Whitworth and Company 1897 - 1927
1901-1950 (when line closed), railway company, Queenborough to Leysdown Sheppey Light Railway 1901 - 1950
1903-1972, archaeologist; palaeoanthropologist, Kenyan; British Leakey, Louis Seymour Bazett 1903 - 1972
1901-1937, tramways company, British Isle of Thanet Electric Tramways & Lighting Company Limited 1901 - 1937