Complex sentence: Jack Beresford, CBE, (January 1,1899--December 3,1977) one of the most accomplished rowers of his generation, he won medals at 5 straight Olympics, which was an Olympic record in rowing (since tied by Steven Redgrave).
Split into simpler sentences: Jack Beresford, CBE, (January 1,1899--December 3,1977) was one of the most accomplished rowers of his generation. He won medals at 5 straight Olympics, which was an Olympic record in rowing (since tied by Steven Redgrave).