1Thomas Jefferson to Horatio G. Spafford, 21 February 1815 (Jefferson Papers)
Jefferson, Thomas; Opinions on; H. G. Spafford’s improved carriage [index entry]
2Thomas Jefferson to Charles Willson Peale, 21 March 1815 (Jefferson Papers)
Jefferson, Thomas; Opinions on; H. G. Spafford’s improved carriage [index entry]