William Angus Sinclair

William Angus Sinclair OBE TD FRSE DLitt (27 September 1905 – 21 December 1954) was a 20th-century Scottish philosopher.

He was born in Edinburgh on 27 September 1905 the son of Elizabeth Campbell and her husband, Captain John Sinclair of the Mercantile Marine.

He was educated at George Watson's College then studied philosophy at the University of Edinburgh, graduating with an MA.

His proposers were Norman Kemp Smith, James Pickering Kendall, Ernest Ludlam and Francis Albert Eley Crew.

In the final year he served as Assistant Adjutant General organising the supply of personnel to the airborne divisions.