1Thomas Jefferson to Louis H. Girardin, 18 March 1814 (Jefferson Papers)
Potter, John (mathematician); A System of Practical Mathematics [index entry]
2Thomas Jefferson to George Watterston, 20 October 1815 (Jefferson Papers)
Potter, John (mathematician); A System of Practical Mathematics [index entry]
3Thomas Jefferson: Trigonometry Exercise, 4 December 1815 (Jefferson Papers)
Potter, John (mathematician); A System of Practical Mathematics [index entry]
4Thomas Jefferson to Mathew Carey, 1 September 1816 (Jefferson Papers)
Potter, John (mathematician); A System of Practical Mathematics [index entry]
5Enclosure: Mathew Carey’s Invoice for Books Bought for Thomas Jefferson, 12 September 1816 (Jefferson Papers)
Potter, John (mathematician); A System of Practical Mathematics [index entry]