was later released to his mother's custody and those others fortunate to survive the ordeal were released in a prisoner exchange in June 1781, more than a year after the surrender. His father, Daniel, was deemed to be more of a prize and sent to the British prisons at St. Augustine, Florida along with other leaders of the American rebellion captured in South Carolina. As a prominent merchant in the city, Daniel's properties in Charleston and Beaufort were also confiscated. Daniel's wife, Mary, and their younger children, three daughters, were then exiled to Philadelphia for the remainder of the American Revolution. The family was reunited at Philadelphia after Henry's father was released as part of a prisoner exchange following the surrender of British forces at Yorktown. Still occupied, Charleston and New York City would remain in British hands for some time longer. Refugees and exiles were unable to return until after the withdrawal of British troops from those areas. In addition to his father, Henry William de Saussure had three uncles who served as officers of the Continental Line during the American Revolution. All three uncles died in service to the American cause leaving no male heirs to the de Saussure family in America except that of Daniel. Louis de Saussure was killed during the Siege of Savannah in 1779. Henry de Saussure died in camp during the Siege of Charleston in 1780. Thomas de Saussure was killed at the Battle of Yorktown in 1781. Education and marriage While in Philadelphia young de Saussure attended Princeton College and studied law under Jared Ingersoll, a noted Philadelphia attorney who would later be an active participant in the Constitutional Convention and a leading proponent of the Federalist Party. Before returning to Charleston, de Saussure married Elizabeth Ford, the daughter of Colonel Jacob Ford, Jr. and Theodosia Johnes Ford of Morristown, New Jersey. Henry and Elizabeth were married at her family's home in Morristown. Henry & Eliza de Saussure had 12 children. Their second son, William F. De Saussure, was appointed to fill an unexpired term in the United States Senate in 1852. It was the same seat held by John C. Calhoun. Despite Henry de Saussure's early political association with the Federalist Party and later support of Unionist candidates in opposition to the Nullification movement, most notably Joel Roberts Poinsett, his son William Ford De Saussure would become a signer of the