1894 May 21 Born Brynamman, Carmarthenshire. on correct day
1911 census at Eropormm Brynamman Carmarthenshire

1915 Nov 16 commissioned Welsh Brigade. William Gethin Thomas to be Second Lieutenant.
1920 Oct 18 Joined ADRIC with service no 780. Posted to L Coy
1921 Mar 10 to 24 on Leave
1921 Jun 7. Posted to R Coy
Fined £3 by Coy Commander
1921 Aug 6 to 19 Aug on Leave
1921 Sep 24 to 7 Oct on Leave
1921 Nov 8. Promoted Section Leader
1922 Jan 16. Discharged on demobilisation of ADRIC
1922 Nov 1. married at Swansea, St Thomas, Glamorganshire, Wales to Alice Myfanwy Sage Hargreaves (1901–1979)

1939 Register at Baptist Lane Residence Place Ammanford, Carmarthenshire, Wales Occupation Fruit Salesman. Correct dob. wife Alibe (b 1 Dec 1901)
1940 Jul 25 Emergency Commission in RA. Lt. William Gethin THOMAS (142716)
He later moves to RE
1958 Jan 7 died at Gorseinon, West Glamorgan, Wales
