From CWGC

Rank: Private
Service No: 40584
Date of Death: 18/01/1919
Age: 20
Regiment/Service: Dorsetshire Regiment 3rd Bn. formerly 8th Bn. The Queen’s (Royal West Surrey Regiment)
Grave Reference: W. 203.
Cemetery: MITCHAM (CHURCH ROAD) BURIAL GROUND
Additional Information: Son of Harry and Alice Gladstone, of 131, High St., Collier’s Wood, Merton, London. Enlisted 1914. Born at Tooting, London.

His name is on the east face of the Mitcham War Memorial

See list of WW1 graves in the Parish Church.