1Enclosure: Thomas Jefferson’s Account with Joseph Milligan, [ca. 2 December 1811] (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
2Joseph Milligan to Thomas Jefferson, 12 October 1814 (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]
3Thomas Jefferson’s Account with Joseph Milligan, [ca. 16 August 1815] (Jefferson Papers)
Wilson, Alexander; American Ornithology [index entry]