The son of the Governor of Melbourne Gaol, John Buckley Castieau (1831–1885), Godfrey Cass was born Godfrey Castieau in 1867, one of seven children.
Godfrey Cass, the child of Melbourne Gaol's Governor John Buckley Castieau, was born Godfrey Castieau in 1867 as part of a large family.