J. B. Trinick was born and educated in Melbourne, Victoria. He served in World War I, enlisting in the 24th Battalion on 7 August 1916, and returned to Australia on 1 August 1919. At the time he enlisted Trinick's occcupation was given as 'painter'. He also practised as a stained glass craftsman.
Source: J.W. Mackail's introductory note to The Dead Sanctuary (1922).
