Brigadier Martin Hotine CMG CBE RE 17 June 1898-12 November 1968 Head of Trigonometrical and Levelling Division, Ordnance Survey, 1934-1939, Designer of the Ordnance Survey Trigonometrical Pillar, 1935, Founding Director, Directorate of Overseas Surveys, 11 March 1946-10 October 1963
