Complex sentence: Frederick Augustus Cockling (August 22,1816--September 18,1891) was a United States Representative from New York during the American Civil War, and a postbellum banker, insurance company executive, and writer.
Split into simpler sentences: Frederick Augustus Cockling (August 22,1816--September 18,1891) was a United States Representative from New York during the American Civil War. He was also a postbellum banker, insurance company executive, and writer.