There is a Thomas Henry Greening in Tewkesbury on the 1911 census with parents John & Elizabeth, if this was him in 1901 he was noted as Tom on the census, so this could be his registration below.
Tom Greening registered Q3/1895 Tewkesbury, Gloucestershire Vol 6a Page 441
No WW1 details for him on An
..y but if you google the regiment quite a lot of information on the web which might help.
Colin