William J. Nammack passed away peacefully on May 11, 2015. Beloved husband of Carol. Loving father of Caitlin Nammack Weissman and the late Peter Nammack. Devoted and loving grandfather of Hillary, Christopher, and Sarah Nammack and Avery and Margaret Weissman. Bill was a graduate of the Peddie School and Princeton University. He was an officer with the Navy on the Battleship U.S.S. Wisconsin during World War II. A specialist on the New York Stock Exchange as a partner of Sprague & Nammack, and later a partner of Murphy, Marseilles, Smith & Nammack. He was a governor of the NY Stock Exchange and a member of the Association of Stock Exchange Firms. Mass of Christian Burial at St. Dominic RC Chapel, 96 Anstice St., Oyster Bay. Interment Locust Valley Cemetery. In lieu of flowers donations in his memory to the Salvation Army, 992 Prospect Ave., P.O. Box 974, Westbury, NY 11590 or www.salvationarmyusa.org would be appreciated. For further information visit www.oysterbayfuneralhome.com.