Further reading:

Christopher M. Curtis, “William Daniel (1806-1873),” Dictionary of Virginia Biography (1998).

Don P. Halsey, Jr., “Judge William Daniel, Jr.,” The Virginia Law Register, Vol. 7, No.1 (May 1901).

Research collections:

Library of Virginia (Personal Papers Collection)
Richmond, Va.
Sarah Warwick Daniel Letter, April 30, 1842 (4 p.).
Letter to William Daniel, Jr., from his wife; “gives news of friends and family; describes her church’s system of admitting members on a probationary basis; urges her husband to read the Bible; and wishes him safely home.”

University of Virginia (Albert and Shirley Small Special Collections)
John Warwick Daniel Papers, 1816-1936.
Papers include correspondence, 1826-1845 (1 box), between William Daniel, Jr., and his wife, Sarah Warwick Daniel, and their children, primarily concerning family matters but also Daniels’ law practice; and an autograph album of Sarah Warwick Daniel, 1831-1837. Finding aid available.

Papers of the Stuart-Baldwin Families, 1764-1884.
Letters (eight), 1833-1846, from William Daniel, Jr., to Judge Briscoe Baldwin; finding aid available.

University of Virginia School of Law (Arthur J. Morris Law Library)
Charlottesville, Va.
19th Century Legal Manuscripts.
The collection includes a letter, June 5, 1857, from Judge Daniel regarding granting an appeal in the case of T[echenor?] v. Allen.