Clement John De Garis was born in North Melbourne Victoria Australia. His entry in the Australian Dictionary of Biography is here.
He married Rene Vera Corbould, second child of Robert Rutter Corbould.
His elegant marital home in Mildura was called Windulva, after his three daughters Winifred, Dulcie and Vera. It later became a private hospital, and then even later was demolished to build a centre for handicapped children.