1Thomas Jefferson to Mathew Carey, 10 May 1818 (Jefferson Papers)
Hardie, James; De Viris Illustribus Urbis Romæ [index entry]
2Mathew Carey & Son to Thomas Jefferson, 16 May 1818 (Jefferson Papers)
Hardie, James; De Viris Illustribus Urbis Romæ [index entry]
3Thomas Jefferson to Mathew Carey, 21 June 1818 (Jefferson Papers)
Hardie, James; De Viris Illustribus Urbis Romæ [index entry]
4Mathew Carey & Son to Thomas Jefferson, 27 June 1818 (Jefferson Papers)
Hardie, James; De Viris Illustribus Urbis Romæ [index entry]