Complex sentence: John Atack was a professional rugby league footballer who played in the 1890s, playing at club level for Wakefield Trinity (Heritage № 64), as a forward, during the era of contested scrums.
Split into simpler sentences: John Atack was a professional rugby league footballer who played in the 1890s. He played at club level for Wakefield Trinity (Heritage № 64), as a forward, during the era of contested scrums.