Patricia, When I began researching the DAVIDSON family last spring & summer the only info I had was what I had copied from trees posted on World Family Tree. I did not have any original sources as proof for the data given so I dont know about the 1790 date. After further study of the trees I too have noted several areas where the info seems inaccurate. As a result I have begun to work back from my grandfather,BURTON DAVIDSON, grgrandfather ABRAHAM DAVIDSON, & grgrgrandfather PERRY DAVIDSON and have traced them back through the use of census entries as that is all I have available due to the fact that I live too far away to be able to check other original sources. Please e-mail me at firstname.lastname@example.org and I will exchange what info I have.