Don: I think your Sarah Dean b. 1844 is my husband's g grandmother, Sarah A. Dean who married Robert Mitchell, b. 1841. Do you have any more information about Sarah Dean? Other surnames in my husband's ancestry from Mercer County: Barnes, Montgomery, Alexander, Mook, Carey, McGarr, McIntire. Through the Mercer County Queries I have contacted with others researching Barnes, Montgomery, Alexander and McGarr! Willing to share whatever information I have. And, yes, there are some of us on the list who live in the area. I live right on the Venango County/Mercer County line. Sandy Boyer Barnes