Complex sentence: Ken Greatorex (birth registered July → September 1936) is a professional rugby league footballer who played in the 1950s, and 1960s, playing at club level for Featherstone Rovers (Heritage № 399).
Split into simpler sentences: Ken Greatorex (birth registered July → September 1936) is a former professional rugby league footballer who played in the 1950s, and 1960s. He played at club level for Featherstone Rovers (Heritage № 399).