I know of the Dorchester Co. and Somerset Co. Wo(o)lfords of maryland. I also know of Somerset Co, Pa wolfords. There were many Thomas woolfords in Md. from 1700's on . I don't know about Mary Hill(atleast the last name). Look for the Woolfords in Md. The W.VA Wolfords came from the Md Clan. Roger W. came to America in 1661. My Uncle Dave or Jim??moved to Cal. at turn of century. they were from Westmoreland Co., Pa. Max