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- [S1016] Medieval English Ancestors of Robert Abell by Carl Boyer III. Santa Clarita, California, 2001.
- [S3215] Medieval Welsh Ancestors of Certain Americans by Carl Boyer III. Santa Clarita, California, 2004.
- [S128] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant ed. Vicary Gibbs, H. A. Doubleday, Duncan Warrand, Howard de Walden, Geoffrey H. White and R. S. Lea. 2nd edition. 14 volumes (1-13, but volume 12 spanned two books), London, The St. Catherine Press, 1910-1959. Volume 14, "Addenda & Corrigenda," ed. Peter W. Hammond, Gloucestershire, Sutton Publishing, 1998.
- [S77] The History of the County Palatine and City of Chester by George Ormerod. Second edition, revised and enlarged by Thomas Helsby. London: George Routledge and Sons, 1882.
- [S977] The Blackmans of Knight's Creek: Ancestors and Descendants of George and Maria (Smith) Blackman by Henry James Young. Carlisle, Pennsylvania: 1980., year only.
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