Further reading:

Lewis Preston Summers, “John Alexander Buchanan,” History of Southwest Virginia (1903).

Peter Wallenstein, “John Alexander Buchanan (1843-1921),” Dictionary of Virginia Biography (1998).

Research collections:

Library of Virginia (State Government Records Collection)
Papers of James Keith, President, Virginia Supreme Court of Appeals, 1843-1910 (bulk 1877-1910); 3 boxes.
Correspondent.

University of Virginia (Albert and Shirley Small Special Collections Library)
Charlottesville, Va.
Whittle Family Papers, 1753-1960.
Correspondent of Judge Stafford Gordon Whittle, 1901-1919.

Virginia Museum of History and Culture
Richmond, Va.
Robert Taylor Scott Papers, 1889-1893; 42 items.
Correspondent.