Jefferson, T., Jefferson, R., & Mayo, B. (1942). Thomas Jefferson and his unknown brother Randolph: Twenty-eight letters exchanged between Thomas and Randolph Jefferson ... during the years 1807 to 1815; now for the first time put into print. Charlottesville: Tracy W. McGregor Library, University of Virginia.

Jefferson, Thomas, Randolph Jefferson, and Bernard Mayo. Thomas Jefferson and His Unknown Brother Randolph: Twenty-eight Letters Exchanged between Thomas and Randolph Jefferson ... During the Years 1807 to 1815; Now for the First Time Put Into Print. Charlottesville: Tracy W. McGregor Library, University of Virginia, 1942.

Jefferson, Thomas, Randolph Jefferson, and Bernard Mayo. Thomas Jefferson and His Unknown Brother Randolph: Twenty-eight Letters Exchanged between Thomas and Randolph Jefferson ... During the Years 1807 to 1815; Now for the First Time Put Into Print. Charlottesville: Tracy W. McGregor Library, University of Virginia, 1942.