Can someone identify a Dennison for me. Zadock DENNISON, Zadock who married Elizabeth MATHEWS Jan. 1, 1817 He is listed on the 1820 Hart Co Census: Denison, Zodock 1 male 18 to 26,1 female 1 to 10, 1 female 16 to 26, farmer He is shown with Benjamine and Isaac Denison.