His brother, Reginald James (b.1895) had also served and been wounded in the conflict, dying in 1926. John went on to marry his Reginald's widow, Annie Amelia Hart (Coombs), in Birmingham, Warwickshire, in 1928 and they had two children. Another brother, Leonard (b.1899) also served in the war, with The Hussars and the Tank Corps.
By the 1939 Register John was living at Tollard Farm, Tollard Royal, Wiltshire, and described as a Dairy and Corn Farmer as well as a Special Constable. His death is recorded at the Salisbury, Wiltshire, District Registry in 1967.