I just did some lookups for you in census pages, and then at www.familysearch.org
and .twice. my 5:30 am finger clicked on the wrong thing and made my 2 posts - disappear.
I'll just do a summary for now and try to get back to it later in the morning.
There was a Joseph TARR in Bowdoin, ME (Lincoln Co.) from 1790 to 1820. And, at FamilySearch he is still there in 1830 and 1840.
And, there was a John COOMBS in Bowdoin, ME, in 1820. And it shows a Charlotte COOMBS born there in 1791 born to John and Charlotte COOMBS.
Betty (near Lowell, MA)
(on Lists and Boards for 10 yrs.; now an Admin for 9 Lists and 3 Boards)