Harold Stanley Wyndham was born in Forbes, New South Wales on 27 June 1903, first child to Agnes Effie (née Finigan) and Stanley Charles Wyndham [REF].
Harold married Beatrice Margaret (Margaret) Grieve in 1936 and moved to the Sydney suburb of Roseville in 1937 where the couple raised three sons, Philip, John and David, all of whom attended the academically selective North Sydney Boys High School.