sentences:  Delaplaine was a son of John Ferris Delaplaine (1786-1854) and Julia Ann (Clason) Delaplaine (1794-1866).His brother John Ferris Delaplaine Jr. (1815-1885) served as secretary of the U.S. legation in Vienna from 1866 to 1883.In 1838, Delaplaine married Matilda Post (1821-1907).