John married Susanna Carnegie Edmonstone in 1867 in St Margaret's Church, Westminster, Middlesex, England. Susanna (daughter of Charles Welland Edmonstone and Susan Mary d'Oyley Douglas) was born in Jan 1844 in Marlborough, Wiltshire, England; died on 25 Mar 1931 in Cambridge, Cambridgeshire, England,. [Group Sheet] [Family Chart]