1To John Adams from Joseph Wheaton, 11 July 1818 (Adams Papers)
...for and received orders to return to Washington City after an absence of 16 months...
2To James Madison from Joseph Wheaton, 1 July 1820 (Madison Papers)
Washington City July 1st. 1820
3Joseph Wheaton to Thomas Jefferson, 16 November 1820 (Jefferson Papers)
Washington City
4To John Adams from Joseph Wheaton, 10 February 1825 (Adams Papers)
Washington City 10. Feby 1825