John KENT, Elizabeth CRATSLEY (FULLER)

John KENT appears with daughter Elizabeth CRATSLEY (widow of probable John) and children Reuben and Susan in the 1850 census. By 1860 she had moved to Montcalm County and married widower Obediah Fuller. What happened to John? Did he die? Where is he buried? Does anyone have ANY information on him? We are looking for a John Kent, born in NJ, lived in Plattsburgh, NY, had children and died where? Since some of those children came to Michigan, this John is a good possibility. Can anyone help me?