1. Adams, Athur, and Weiss, Frederick L. (1955). The Magna Charta Sureties, 1215; and Some of Their Descendants Who Settled in America, 1607–1650, The Authors. [1st ed.].
2. American Antiquarian Society (2024, February 04). “George Dudley Seymour,” The American Antiquarian Society Quarterly, Obituaries. Available online: https://www.americanantiquarian.org/proceedings/44807115.pdf.
3. American Antiquarian Society (2024, February 04). “About,” American Antiquarian Society. Available online: https://www.americanantiquarian.org/about.
4. American Society of Genealogists (2024, February 04). “About,” The American Society of Genealogists. Available online: https://fasg.org/about/.
5. Ancestry (2024, May 03). Ancestry Academy. Available online: https://www.ancestryacademy.com/browse.