1John Adams to Thomas Jefferson, 4 November 1816 (Jefferson Papers)
Bode, Johann Elert; Uranographia sive Astrorum Descriptio [index entry]
2Thomas Jefferson to John Adams, 25 November 1816 (Jefferson Papers)
Bode, Johann Elert; Uranographia sive Astrorum Descriptio [index entry]
3John Adams to Thomas Jefferson, 16 December 1816 (Jefferson Papers)
Bode, Johann Elert; Uranographia sive Astrorum Descriptio [index entry]