Mis-filed as CLARKE in the WW1 Service Records (WO 363):

William Edwin CLERKE, served 12 years with the RMLI (Regt No 14736) until April 1914.
Enlisted with the RGA on 5 December 1915, declaring age 32y 7m, home address BROCKLEY (Kent?). Freebmd shows birth as 1885.
Served as Sergeant 71340 until death (gassed) in December 1917.

Married in Hatcham Park, March 1917 - Rose Kate CASELTON (who re-married a SIDEBOTHAM, probably in 1921, and moved to Sheffield). No children.
Mother Sarah Ann (died Q3 1917). Brother Bertram Walter (c1878). Sister Violet Edith THOMAS (c1888).

Anc****y, CLA, pages 181951-181973