William Herbert Jr. (born c. 1780)
William Herbert Jr., a descendant of William Fairfax, was born in Alexandria, Virginia. His parents, William Herbert Sr. (1743–1818) and Sarah Carlyle Herbert (1757–1827), were friends of George Washington. Herbert Jr. followed his father into the banking trade, serving as a director of the Union Bank of Alexandria. He was also a landowner/speculator/trustee and a colonel in the District of Columbia militia. Herbert Jr. and his wife Henrietta Maria Dulany (or Dulaney, born c. 1790) had one son.
Benjamin Lewis Dulaney, Something About the Dulaney (Dulany) Family, and a Sketch of the Southern Cobb Family (Washington, D.C.: 1921), 44.
Mary G. Powell, The History of Old Alexandria, Virginia, from July 13, 1749 to May 24, 1861 (Richmond: William Byrd Press, 1928), 314–15.
Richard Henry Spencer, "The Carlyle Family," The William and Mary Quarterly, Volume 18, Number 3 (January 1910), 201–12.
"To Thomas Jefferson from Henry Dearborn, 25 November 1805," Founders Online, National Archives, https://founders.archives.gov/documents/Jefferson/99-01-02-2701.
Alexandria Gazette & Daily Advertiser (VA), 9 July 1819, page 2, column 1 (America’s Historical Newspapers).
Slave Manumissions in Alexandria Land Records, 1790–1863 at The Friends of Freedmen's Cemetery.
Bank of Alexandria v. Herbert, 12 U.S. 36 (1814) at Justia: U.S. Supreme Court Center.