Businessman. In 1844 he founded a shipyard in Boston that produced many of the United States’ largest and most famous clipper ships. One of the ships he built, the SS Flying Cloud, sailed from New York City to San Francisco (going around South America’s Cape Horn) in a then-record 89 days. During the Civil War his shipyard produced ironclad warships for the Union. (bio by: Russ Dodge)  Family links:  Spouse:  Mary Cressy Litchfield McKay (1831 – 1923)*  Children:  Wallace   McKay (1868 – 1961)* *Calculated relationship