Complex sentence: Jimmy Russell was a professional rugby league footballer who played in the 1930s, 1940s, and 1950s, playing at club level for Featherstone Rovers (captain) (Heritage № 171), as a, i.e. number 7.
Split into simpler sentences: Jimmy Russell was a professional rugby league footballer who played in the 1930s, 1940s, and 1950s. He played at club level for Featherstone Rovers (captain) (Heritage № 171), as a, i.e. number 7.