1Thomas Jefferson to Robert Patterson, 11 September 1811 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
2Robert Patterson to Thomas Jefferson, 23 September 1811 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
3Thomas Jefferson to Robert Patterson, 10 November 1811 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
4Robert Patterson to Thomas Jefferson, 30 November 1812 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
5Thomas Jefferson to Robert Patterson, 27 December 1812 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
6Robert Patterson to Thomas Jefferson, 12 January 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
7Robert Patterson to Thomas Jefferson, 25 March 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
8Thomas Jefferson to Robert Patterson, 8 April 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
9Thomas Jefferson to Thomas Voigt, 9 April 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
10Robert Patterson to Thomas Jefferson, 24 April 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
11Thomas Jefferson to Thomas Voigt, 20 May 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
12Thomas Voigt to Thomas Jefferson, 3 September 1813 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
13Robert Patterson to Thomas Jefferson, 25 August 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
14Thomas Jefferson to Robert Patterson, 13 October 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
15Robert Patterson to Thomas Jefferson, 24 October 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
16Robert Patterson to Thomas Jefferson, 28 November 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
17Patrick Gibson to Thomas Jefferson, 22 December 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
18Thomas Jefferson to Robert Patterson, 22 December 1815 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]
19Thomas Jefferson to John Vaughan, 15 January 1816 (Jefferson Papers)
Patterson, Robert; and astronomical case clock [index entry]