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]
^"EVERY MAN WANTED". The Brisbane Courier. No. 17, 899. Queensland, Australia. 29 May 1915. p. 5. Retrieved 16 March 2016 – via National Library of Australia.