1Pierre Samuel Du Pont de Nemours to Thomas Jefferson, 26 May 1815 (Jefferson Papers)
Augustus (Gaius Octavius; 1st Roman emperor) [index entry]
2Thomas Jefferson: Analysis of Weather Memorandum Book, January 1817 (Jefferson Papers)
Augustus (Gaius Octavius; 1st Roman emperor) [index entry]
3John Adams to Thomas Jefferson, 19 April 1817 (Jefferson Papers)
Augustus (Gaius Octavius; 1st Roman emperor) [index entry]
4Thomas Jefferson to Nathaniel Macon, 12 January 1819 (Jefferson Papers)
Augustus (Gaius Octavius; 1st Roman emperor) [index entry]
5John Adams to Thomas Jefferson, 21 December 1819 (Jefferson Papers)
Augustus (Gaius Octavius; 1st Roman emperor) [index entry]