I just looked at what you had on Ancestry regarding the Bennett line and you have George W. Bennett born 1803 and died 1860. I believe he died after 1883 as he is in the City Directory for Cincinnati in 1883 with son Jesse. I also found him on some census records after 1860. James M. Bennett died in 1873. I have a funeral home record for him and he is not on the 1880 census with his wife. Do you have any other information on Isaac Bennett or on Polly Johnson?