1Thomas Jefferson to Joseph Milligan, 11 August 1815 (Jefferson Papers)
Tables Requisite to be used with the Nautical Ephemeris (J. Garnett) [index entry]
2Thomas Jefferson to Joseph Milligan, 17 August 1815 (Jefferson Papers)
Tables Requisite to be used with the Nautical Ephemeris (J. Garnett) [index entry]
3Thomas Jefferson to Joseph Milligan, 22 December 1815 (Jefferson Papers)
Tables Requisite to be used with the Nautical Ephemeris (J. Garnett) [index entry]