1Alden Partridge to Thomas Jefferson, 6 September 1815 (Jefferson Papers)
New Hampshire; mountains in [index entry]
2Enclosure: Alden Partridge’s Table of Altitudes of Northern Mountains, [before 6 September 1815] (Jefferson Papers)
New Hampshire; mountains in [index entry]
3Thomas Jefferson to Alden Partridge, 12 October 1815 (Jefferson Papers)
New Hampshire; mountains in [index entry]
4Alden Partridge to Thomas Jefferson, 23 November 1815 (Jefferson Papers)
New Hampshire; mountains in [index entry]
5Enclosure: Alden Partridge’s Notes on Altitudes of Mountains, 20 August 1817 (Jefferson Papers)
New Hampshire; mountains in [index entry]
6Alden Partridge to Thomas Jefferson, 20 February 1818 (Jefferson Papers)
New Hampshire; mountains in [index entry]