1891 Jun 28 , Born Sydney Australia. (RIC record)
1911 census at 15 Orbel St , Battersea. His mother has been widowed
1913 Jun 8 Married in London to Rose Elizabeth Bennett. He is a bus conductor.
1918 Sep 11.Devon Regt. The undermentioned to be temp. 2nd Lts. (on prob.) : William Thomas Cosgrove
1921 Dec 20 Gazetted out 2nd Lt.
1920 Aug 24 Joined ADRIC with service no 388 and posted to D Coy
1921 May 31 Promoted Section Leader
1921 May 27 to 10 Jun on Leave
1921 Jul 16 to 30 Jul on Leave
1921 Sep 10 to 24 Sep on Leave
1921 on Leave
1921 Sep 1. Service Battalions. The undermentioned relinquish their commissions on completion of service: —Devon. R. Temp. 2nd Lts., and retain the rank of 2nd Lt.: — W. T. Cosgrove.
1922 Jan 21 Discharged on demobilisation of ADRIC
1939 Living in Sutton & Cheam with Rose at 385 Sutton Common Road , Sutton and Cheam M.B., Surrey, He is a Road Inspector
1970 Sep Died Basingstoke aged 77
WO 374/ 15645