1Thomas Jefferson’s Account with Joseph Milligan, [8–10 March 1809] (Jefferson Papers)
The Nautical Almanac and Astronomical Ephemeris (J. Garnett); bound by J. Milligan [index entry]
2Thomas Jefferson to Joseph Dougherty, 27 May 1809 (Jefferson Papers)
The Nautical Almanac and Astronomical Ephemeris (J. Garnett); bound by J. Milligan [index entry]
3Joseph Dougherty to Thomas Jefferson, 18 June 1809 (Jefferson Papers)
The Nautical Almanac and Astronomical Ephemeris (J. Garnett); bound by J. Milligan [index entry]
4Enclosure: Thomas Jefferson’s Account with Joseph Milligan, [ca. 6 February 1818] (Jefferson Papers)
The Nautical Almanac and Astronomical Ephemeris (J. Garnett); bound by J. Milligan [index entry]