

Introduction
William Trevor Thomas (8 March 1907 – 3 February 1969), also known by the nickname of "Ocker", was a Welsh dual-code international rugby union, and professional rugby league footballer who played in the 1930s and 1940s. He played representative level rugby union (RU) for Wales, and at club level for Abertillery RFC, as a flanker, i.e. number 6 or 7, and representative level rugby league (RL) for Wales, and at club level for Oldham (Heritage No. 281) (two spells) (captain), and Wigan (Heritage No.), as a second-row, i.e. number 11 or 12, during the era of contested scrums.
Background
William "Ocker" Thomas was born in Merthyr Tydfil, Wales, and he died aged 61 in Pentwynmawr, Newbridge, Wales (death registerd in Neath, Wales).
Playing career
International honours
Thomas won a cap for Wales (RU) while at Abertillery RFC in 1930 against England, and won 3 caps for Wales (RL) in 1932–1940 while at Oldham, and Wigan.
County Cup Final appearances
During Thomas' time at Oldham, they had a 12-0 victory over St Helens Recs in the 1933 Lancashire County Cup Final during the 1933–34 season at Station Road, Swinton on Saturday 18 November 1933. Thomas played right-second-row, i.e. number 12, in Wigan's 10-7 victory over Salford in the 1938 Lancashire County Cup Final during the 1938–39 season at Station Road, Swinton on Saturday 22 October 1938.