1Thomas Jefferson’s Account with Joseph Milligan, [ca. 16 August 1815] (Jefferson Papers)
Ewell, James; The Planter’s and Mariner’s Medical Companion [index entry]
2Enclosure: Joseph Milligan’s Invoice for Books Bought for Thomas Jefferson, 6 May 1815 (Jefferson Papers)
Ewell, James; The Planter’s and Mariner’s Medical Companion [index entry]