Complex sentence: Charles Francis Adams III known as Deacon (August 2,1866--June 10,1954), a member of the prominent American Adams family, was the United States Secretary of the Navy under President Herbert Hoover and a well-known yachtsman.
Split into simpler sentences: Charles Francis Adams III known as Deacon (August 2,1866--June 10,1954), was an American politician. He was a member of the prominent American Adams family, was the United States Secretary of the Navy under President Herbert Hoover and a well-known yachtsman.