[1] Gibson was born on 18 December 1876 at Hanover Square, London, son of Edward Morris Gibson, articled clerk and later solicitor, and his wife Martha, née James.
[2] He was educated at Alleyn's College of God's Gift (Dulwich College) and served an apprenticeship with the Thames Iron Works, Ship Building & Engineering Co. at Blackwall, London.
[2] He was a member of the Queensland Recruiting Committee during World War I.
[3] During the Great Depression he was the president of the All for Australia League.
[4] Media related to Alexander James Gibson at Wikimedia Commons