1Horatio G. Spafford to Thomas Jefferson, 23 January 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...
2Horatio G. Spafford to Thomas Jefferson, 28 January 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...
3Horatio G. Spafford to Thomas Jefferson, 15 February 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...
4Horatio G. Spafford to Thomas Jefferson, 18 February 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...
5Thomas Jefferson to Horatio G. Spafford, 21 February 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...
6Horatio G. Spafford to Thomas Jefferson, 4 [May] 1815 (Jefferson Papers)
Some Cursory Observations on the Ordinary Construction of Wheel-Carriages (H. G. Spafford) [index...