Alan Seligson, age 91, died peacefully at his family home in Locust Valley, NY, on June 17 2021 following an illness. He was the loving and devoted husband of Edith (nee Marks), father of Nancy and Kate and the late Andrew, proud grandfather of Drew, Benjamin, Chloe, and Ian. Born in Woodmere, NY, on June 6, 1930, he graduated from Catawba College. Lt. Commander, Retired, Seligson served in the Navy during the Korean War aboard the USS Glynn along with his best friend, the late Terry Wells. Following his naval service, Alan founded NF&M International, a manufacturer of titanium billet and specialty products for the aerospace industry. A nimble private company, NF&M succeeded in the highly competitive marketplace dominated by giant public companies. Following the untimely passing of his son Andrew, Alan dedicated much time and energy to supporting genetic-level cancer research at the Cold Spring Harbor Laboratories, where he served as Trustee. He and his wife founded the Andrew Seligson Lab for cancer research, which annually supports a post-doctorate researcher and is helping shape contemporary biomedical research and education with a focus on cancer, neuroscience, plant biology, and quantitative biology. Alan was a life-long appreciator of art and music. He was most interested in modern and impressionist art and loved having classical or jazz music playing throughout the house. He served as President and Trustee of the Nassau County Museum of Art. He was also a member of the United Nations Business Council. More recently, Alan served as elected Trustee of the Village of Matinecock. One of the first members of the Atlantic Golf Club, in Bridgehampton, NY, Alan continued to play as a 90-year-old and set course records as a senior player. He was also a member of Nassau Country Club and the Bears Club in Jupiter, FL.