Daniel Sitomer of Southbury, CT, formerly of Danbury, CT, and Merrick, NY died October 13, 2026, one day after his 93rd birthday, in Boston, MA. He lived with Parkinson’s Disease for the last several years of his life. He is survived by his devoted wife of almost 73 years, Ann Sitomer, son Joseph Sitomer, daughter Marion Sitomer, daughter-in-law Anita Sitomer, and grandchildren Prerna Sitomer and Niharika Sitomer. He survived his son Steven Sitomer and sister Alice Ross. His funeral service will be held on Sunday, October 18, 2026, at 12:00 noon at Torf Funeral Chapel. Please see below for the link for live streaming of the service.
All who knew Dan Sitomer would agree he was an extraordinary human being. He was kind to the core and stepped up whenever others were in need. He excelled at most anything he set his mind too. He was intellectually brilliant, musically gifted, and could charm anyone with his gentle sense of humor.
Dan was born in Brooklyn to Harry and Mindel Sitomer. He studied violin from an early age. While recovering from scarlet fever as a teenager he spent many hours learning and playing chess with his grandfather. He became an enthusiastic and skilled player. After competing as a member of the Columbia University chess team, he maintained a lifelong passion for the game.
He met Ann Sirota, the love of his life at his 18th birthday party. A year and a half later, he asked her out for their first date, and they were married December 20, 1953. They lived in Brooklyn, Queens, and eventually Long Island, where they raised Joe, Marion, and Steve. Their deep and long-lasting love was at the center of both of their lives.
Dan received his bachelor’s and master’s degrees with distinction in mathematics from Columbia University. He then started a career as a systems analyst in the first wave of main frame business computing. He worked at Honeywell Corporation, Chase Manhattan Bank, and the New York State Housing Authority. Through much of his working life he also taught computers at the continuing education department of New York University. In addition, he shared his serious hobbies, chess and bridge teaching in various community
settings. He was a natural communicator and teacher, and everyone who learned from him, no matter the subject, came away enriched.
In addition to playing stringed instruments, Dan loved to sing. He performed in a variety of classical choral groups, including briefly touring internationally with the St Cecelia Chorus of New York. He also performed with the Gilbert & Sullivan Workshop of Long Island for over a decade. Singing was such a part of his personality that he was liable to burst into song at the drop of a hat.
Dan had many other interests. He wrote limericks and other poems for the people in his life, to both mark special occasions and express affection. He made regular submissions to the New York Magazine monthly poetry contest and was recognized on several occasions. He was also an avid crossword puzzler, and at one point was nationally ranked.
Dan will be missed and fondly remembered by all. For those so inclined, the family would welcome a donation to the Michael J. Fox Foundation for Parkinson’s Research.