Parker, J. C. (1986). Pennsylvania and Middle Atlantic States genealogical manuscripts: A user's guide to the manuscript collections of the Genealogical Society of Pennsylvania : as indexed in its manuscript materials index. Turlock, Calif.: Marietta Pub. Co..

Parker, J. Carlyle. Pennsylvania and Middle Atlantic States Genealogical Manuscripts: A User's Guide to the Manuscript Collections of the Genealogical Society of Pennsylvania : As Indexed in Its Manuscript Materials Index. Turlock, Calif.: Marietta Pub. Co., 1986.

Parker, J. Carlyle. Pennsylvania and Middle Atlantic States Genealogical Manuscripts: A User's Guide to the Manuscript Collections of the Genealogical Society of Pennsylvania : As Indexed in Its Manuscript Materials Index. Turlock, Calif.: Marietta Pub. Co., 1986.