Looks like there were a lot of ABBOTT-BARNUM marriages.
I am looking for James ABBOTT b. about 1783 and Rebecca BARNUM b. about 1785 in Danbury, CT. They moved west to Indiana about 1818. They had the following children:Elon, Edwin, Eldridge, Mary, Eliza, Marie, and Almira. James ABBOTT's father was James ABBOT of Ridgefield, CT.
I have a y-DNA match with a Nathan ABBOTT from CT, but have not been able to make a connection. That family line ended up in PA.