Dawn, The 1860 census for Jefferson Co., PA shows 3 Nancy Geers. Nancy Maria married to Lawson Geer(too old), Nancy Ann (either wife or daughter of Martin Luther Geer, Pine Creek Twp.)and Nancy M. Geer (parents and siblings meet your discription, Rose Twp.) If you know her middle name or twp. of birth it has to be one of the last two. I hope this helps.