Born Trethomas was oldest of 14 children from mining family.Began his working life as a stable boy and jockey at Newmarket.Won stable lads boxing championships in 1938 and 1939 and became R.A.F.flyweight champion 3 years running.
Some early bouts for Record 204644=
06-12-1941.Jack Evans.350452. Little Thaetre,Newport. W.Pts.6.
14-02-1942.Ron Pritchard.129547. Town Hall,Maesteg. W.Pts.6.
07-03-1942. Jack Evans. Little Theatre,Newport. W.Pts.8.
11-09-1942.~~~~~~~~ Palais De Danse,Pontypool. W R.S.F.6.8.
25-09-1942.Bryn Collins.143139.~~~~~~~~~~~~~W.Pts.8.