Silliman attended Yale College. His father, both grandfathers, and great-grandfather all attended Yale as well. He graduated with a B.A. in 1824 and received an M.A. in 1827. He studied law in Yale in 1824 and 1825.[4] His graduating class included Connecticut Chief Justice Origen S. Seymour, New York Attorney General Willis Hall, New York Secretary of State Elias W. Leavenworth, and Richard F. Cleveland, father of future U.S. President Grover Cleveland.[3] By the time he died, he was the last surviving member of his Yale class and Yale's oldest living graduate. After graduating, he spent a year working in Yale as Assistant in Chemistry under his uncle, Professor Benjamin Silliman.[1]
Silliman then studied law in the law office of Chancellor James Kent and his son William Kent. He was admitted to the bar in 1829 and began practicing law in New York City and in Brooklyn, where he lived.[5] With some interruptions for public service, he practiced law for 71 years. For over half a century he served as counsel of the Union Ferry Company, the National Bank of Commerce of Brooklyn, and Green-Wood Cemetery. He received an honorary LL.D. from Columbia University in 1873 and from Yale University in 1874.[1] At the time of his death, he was the oldest practicing lawyer in the state of New York.[3]
Silliman never married. He was a founder of the Union Club and the Long Island Historical Society, president of the Yale Alumni Association,[17] a director of Green-Wood Cemetery (which he helped incorporate while in the Assembly), president of the Brooklyn Club, first president of the New England Society of Brooklyn, a manager of the New York House of Refuge, and a vice-president and co-founder of the New York City Bar Association.[2]
Silliman died at home of bronchial pneumonia on January 24, 1901.[18] He was buried in Green-Wood Cemetery.[19]
^ abMcAdam, David; Bischoff, Henry; Clarke, Richard H.; Dykman, Jackson O.; Van Cott, Joshua M.; Reynolds, George G., eds. (1897). History of the Bar and Bench of New York. Vol. II. New York, N.Y.: New York History Company. pp. 338–342 – via Google Books.