Is he the Ernest Edward Studham who married Maud Elizabeth Clarke on 12 January 1918 in the church of St Martin, Kensal Rise in the parish of Willesden? If so, his occupation is given as soldier, with his usual place of residence given as Halefield Barracks, Wendover, Buckinghamshire. His age certainly seems to match the Ernest E Studham who is a police constable in Portsmouth in the 1911 England census.