Zaddock married Martha Cooley, daughter of Abner Cooley (22 Jan 1712-1 Feb 1788) & Jerusha Graves (13 Jun 1717-14 Sep 1801). Born on 20 Feb 1741 in Sunderland, Franklin County, Massachusetts. Martha died in Monroe County, New York, on 6 Feb 1823; she was 81.