He is probably 77744 Francis J Prout
1897 Jul 26 Born Lewisham, London
1901 census at Plane St, Lewisham
1911 census at The Stables Kingswood, Kingswood Rd, Dulwich SE
1914 Aug 8 Called up Reservist. East Surrey Regt
1915 May 17 Posted to France
1916 Jul 16 Wounded & transferred back to UK
1918 Jan 12 Married May Evelyn Feast at Fareham, Hants.
1918 Apr 1 Transfer to RAF
1919 Jun 28 Transfers to RAF Reserve
1921 Jan 12 Joined RIC no77744
1921 Mar 19. & ADRIC no (918)
Posted to P Coy
1922 Feb 8 Disbanded Gormanston
1939 Register at Portsmouth, Hampshire.. A PSV Driver with wife May E Prout
1958 Died Portsmouth