1Thomas Ladd to Thomas Jefferson, 5 July 1809 (Jefferson Papers)
Ladd, Thomas; letters from [index entry]
2Thomas Ladd to Thomas Jefferson, 9 August 1810 (Jefferson Papers)
Ladd, Thomas; letters from [index entry]
3Thomas Jefferson to Thomas Ladd, 20 August 1810 (Jefferson Papers)
Ladd, Thomas; letters from accounted for [index entry]