Dr. Donald Zinn, 74, of Guilford, died March 19. He was the husband of Sheila (Chodak) Zinn. Born in Hempstead, N.Y., he was the son of Bernard Zinn and Lillian (Katz) Zinn. In addition to his wife, he is survived by four children, Hayley Zinn Rowthorn and her husband, Perry, of West Hartford, Rachel Grey and her husband, Ethan, of West Hartford, Melissa Wallerstein and her husband, Chris, of Montclair, N.J., and Jon Levine and his wife, Rachel Deitch, of Austin, TX; and seven grandchildren, Jackson Bernard, Cameron, Beckett, Gabriel, Juliette, Beatrix and Samuel.