Complex sentence: J. William "Willie" Stocks was an English professional rugby league footballer who played in the 1920s, and 1930s, playing at representative level for England, and Yorkshire, and at club level for Huddersfield, and Dewsbury, as a, i.e. number 1.
Split into simpler sentences: J. William "Willie" Stocks was an English professional rugby league footballer who played in the 1920s, and 1930s. He played at representative level for England, and Yorkshire, and at club level for Huddersfield, and Dewsbury, as a, i.e. number 1.