1Hezekiah Niles to Thomas Jefferson, 1 October 1811 (Jefferson Papers)
Niles, Hezekiah; letters from accounted for [index entry]
2Hezekiah Niles to Thomas Jefferson, 30 June 1815 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
3Samuel Butler (for Hezekiah Niles) to Thomas Jefferson, 11 September 1816 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
4Hezekiah Niles to Thomas Jefferson, 23 December 1816 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
5Hezekiah Niles to Thomas Jefferson, 24 December 1816 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
6Enclosure: Circular from Hezekiah Niles to Prominent Subscribers, 31 July 1817 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
7Hezekiah Niles to Thomas Jefferson, 5 August 1817 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
8Hezekiah Niles to Thomas Jefferson, 2 September 1817 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]
9Hezekiah Niles to Thomas Jefferson and James Madison, [ca. 1 November 1817] (Jefferson Papers)
Niles, Hezekiah; letter from, to J. Madison [index entry] Niles, Hezekiah; letters from [index...
10Samuel Butler (for Hezekiah Niles) to Thomas Jefferson, 16 December 1818 (Jefferson Papers)
Niles, Hezekiah; letters from [index entry]