41Thomas Cooper to Thomas Jefferson, 24 December 1819 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]
42Thomas Cooper to Thomas Jefferson, 10 February 1820 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]
43Thomas Cooper to Thomas Jefferson, 1 March 1820 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]
44Thomas Cooper to Thomas Jefferson, 21 March 1820 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]
45Thomas Jefferson to Gerard E. Stack, [26 March 1820] (Jefferson Papers)
Cooper, Thomas; letters from accounted for [index entry]
46Thomas Cooper to Thomas Jefferson, 24 April 1820 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]
47Thomas Cooper to Thomas Jefferson, 3 May 1820 (Jefferson Papers)
Cooper, Thomas; letters from [index entry]