1Thomas Jefferson to John Adams, 8 April 1816 (Jefferson Papers)
Grimm, Friedrich Melchior, Baron von; and J. Ledyard (1751–89) mission [index entry]
2Thomas Jefferson to Jared Sparks, 27 December 1817 (Jefferson Papers)
Grimm, Friedrich Melchior, baron von; and J. Ledyard (1751–89) mission [index entry]