Air Vice-Marshal Sir Laurence Frank Sinclair GC KCB CBE DSO*. GC 1941. First award of the DSO 1940, Second award 1943. Son of the late Frank Sinclair, Nigerian Political Service. born 13 June 1908; educated Imperial Service College. Squadron Leader 1938; Wing Commander 1941, Group Captain 1943. ADC to HM King 1943-49. AOC Tactical Bomber Force MAAF, SASO Balkan Air Force, MEAF 1944, AOC No 2 Group BAFO. 1949-50 Assistant Commandant RAF Staff College Bracknell 1950, Commandant RAF College Cranwell 1950-52. Commandant School of Land-Air Warfare, Old Sarum 1952-53. Air Vice-Marshal 1952. Assistant Chief of Air Staff (Operations) 1953-55; AOC British Forces, Arabian Peninsula 1955-57. Commandant Joint Services Staff college 1958. retired 1960. Later Controller Ground services Ministry of Aviation 1960; Controller National Air Traffic Control Services 1962-66.