In his 2021 book Descendants of a Foot-Warmer: Memories of a Rural Black Southern Family author Dr. Costello L. Brown, Ph.D., emphasized in the title the maternal side of his mother's family. The "Foot-Warmer" is his second-great grandmother, a slave named Queen. However, the paternal side of his mother's family is equally interesting:
1. John Bigelow m. Dicey/Lucy Williamson [both slaves]
2. Jacob Bigelow (1855-1918) m. Susan Baynes (1859-1901) [both born into slavery]
3. David Nathaniel Bigelow (1892-1970) m. Flora Evans (1896-1977)
4. Mattie Helen Bigelow (1915-1974) m. George Cornelius Brown (1916-1959)
5. Children of Mattie Helen Bigelow and George Cornelius Brown:
(a) Costello L. Brown
(b) Constance Yvonne Brown (1944-2019)
(c) George Bernard Brown
It is possible (some would say likely) that the patriarch of this family, John Bigelow (who married Dicey/Lucy Williamson), was a slave owned by Thomas Pattillo Bigelow (1802-1873). Here is a research article on the "families" of Thomas Pattillo Bigelow:
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Brown, Costello L., Ph.D. Descendants of a Foot-Warmer: Memories of a Rural Black Southern Family. Independently Published: 2021.