Researching John Moore b.abt.1811/1812 m. Catharine Milholland (and many variations!). John may have been born in Mt. Holly, Lancaster, PA. Cannot find Mt. Holly in Lancaster Co.,Pa. Any suggestions? John and Catharine had 4 boys, Mentor, James F., John W., Wiliam W., and 1 daughter, Margaret Virginia. William W., killed in Civil War. Lived in Maryland after 1860. Any help greatly appreciate. Jeanne