Complex sentence: George Broughton Jr. is a professional rugby league footballer who played in the 1940s, and 1950s, playing at club for Castleford, and Leeds, as a, i.e. number 2 or 5.
Split into simpler sentences: George Broughton Jr. is a former professional rugby league footballer who played in the 1940s, and 1950s. He played at club for Castleford, and Leeds, as a, i.e. number 2 or 5.