Alexander Factor Kingsbury, age 42, of Marlborough, Massachusetts, passed away on Sunday, December 7, 2025, at Brigham and Women’s Hospital in Boston. Alex was born and raised in Massachusetts and was a graduate of St. John’s High School, Class of 2001. He went on to attend Sarah Lawrence University, where he earned his bachelor’s degree in liberal arts in 2006.
Those who knew him remember his intelligence, imagination, love of music, feelings of indignity at society's wrong, and thoughtful nature. His potential was always enormous.
He is survived by his loving mother, Maxine Factor Kingsbury; his father, Barry Kingsbury, and Barry’s partner, Mary Knuth; his aunt, Judith Factor, and her husband, Robert Wechsler; and his cousins, Adam and Diana. He will be deeply missed by his family and all who knew him.
Private arrangements are in the care of Sugarman-Sinai Memorial Chapel of Providence
