Career
Simpson signed for Dundee United in 1924 and made his debut at the age of 17 as a wing half. A regular during the club"s first two years at the top level, United could not retain him following relegation in 1927 and he was transferred to Rangers for the then sizable fee of £1,000. At Ibrox he was converted into a centre half and became an integral part of the team which dominated the Scottish game during the 1930s.
Simpson also qualified as an engineer, which became his vocation after he had finished playing.
Simpson left Rangers in July 1946 to take up a player–coach role with Highland League club Buckie Thistle. Simpson was appointed manager of Alloa Athletic on 19 December 1947, but left the club by mutual agreement on 19 February 1949.