11Thomas Jefferson to Robert Patterson, 29 May 1812 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
12Thomas Jefferson to Robert Patterson, 9 August 1812 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
13Thomas Jefferson to Robert Patterson, 27 December 1812 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
14Thomas Jefferson to Robert Patterson, 8 April 1813 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
15Thomas Jefferson to Robert Patterson, 29 June 1814 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
16Thomas Jefferson to Robert Patterson, 23 July 1814 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
17Thomas Jefferson to Robert Patterson, 23 November 1814 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
18Thomas Jefferson to Robert Patterson, 13 October 1815 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
19Thomas Jefferson to Robert Patterson, 22 December 1815 (Jefferson Papers)
Patterson, Robert; letters to [index entry]
20Enclosure: Ferdinand R. Hassler to Robert Patterson, 2 December 1816 (Jefferson Papers)
Patterson, Robert; letter to, from F. R. Hassler [index entry]