He won just two caps for Wales, and was one of thirteen Welsh internationals to die in conflict during World War I. Thomas was born to a rector from Bettws, Bridgend, but moved to England when he gained a place at King's College, Cambridge after winning a choral scholarship.
He played cricket for the Cambridge seconds, represented the athletics team and won a Blue at rugby.
While playing for Cambridge he was first selected to represent Wales in 1912 in a game against the touring South African team.
[4] Thomas would play only one more game for Wales, under the captaincy of Tommy Vile, in the team's opening match of the 1913 Five Nations Championship against England.
He reached the rank of Second Lieutenant within the Rifle Brigade and was killed in battle at Hamel, north of the river Ancre, in September 1916.