This may be my second posting within the last few days so forgive me - 1880 Federal Census of Allegany county, Maryland lists three different Davidson families. Angus Davidson - age 41 and family, John D. Davidson - age 32 and family and an Elizabeth Davidson - a widow age 64 and her grandson Thomas S. Davidson -age 14. Thomas, John D, and Angus and wife all give Nova Scotia as their place of birth. About twenty years later Thomas and family moved to Pittsburgh, PA. Have no idea what happened to the other two families. Does any of this sound familiar to anyone out there? Would love to share info. Thanks Fern Davidson