Family Search shows an Edwin J Derr b abt 1904 Williamsport, PA, son of John Derr and Mamie Miller, m 24 Aug 1935 Beuana Vista, VA to Ruth C Agnor. Virginia Marriages 1785 1940. It was the only representation of Edwin J Derr PA to VA. It may or may not be yours, With no time frame in which he lived, I thought the PA to VA connection worth a try.