1William F. Gray to Thomas Jefferson, 18 May 1811 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
2William F. Gray to Thomas Jefferson, 23 June 1810 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
3Joseph Milligan to Thomas Jefferson, 12 October 1814 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
4Thomas Jefferson’s Account with Joseph Milligan, [ca. 16 August 1815] (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
5Thomas Jefferson to Joseph Milligan, 5 October 1815 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
6Thomas Jefferson to Joseph Milligan, 27 October 1815 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
7Enclosure: Thomas Jefferson’s Account with Joseph Milligan, [ca. 2 December 1811] (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]