1Thomas Jefferson to Thomas Cooper, 10 October 1817 (Jefferson Papers)
Cooper, Thomas; library and scientific apparatus of [index entry]
2Thomas Jefferson to Thomas Cooper, 4 October 1818 (Jefferson Papers)
Cooper, Thomas; library and scientific apparatus of [index entry]
3Thomas Jefferson to Thomas Cooper, 8 April 1820 (Jefferson Papers)
Cooper, Thomas; library and scientific apparatus of [index entry]