I have a Nancy Adair who was born in KY (?) in about 1790 (could have been in her late 50s at the time you state. She was married to John A. Endicott, and he died in 1874 in Wisconsin, where a branch of the Endicotts had emigrated. I do not know her death date nor place, nor if she ever removed to IL, but their son James (born in Kentucky in 1809) removed to Posey Co. IN (on IL border)before 1830, and died there in 1860. I have no dates on my Nancy, but believe her mother was a DeWeese. I am looking for her heritage and having no luck. Wish I knew more.