1Thomas Jefferson to Robert Patterson, 10 November 1811 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
2Thomas Jefferson to Thomas Voigt, 20 May 1813 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
3Thomas Jefferson to Thomas Voigt, 9 April 1813 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
4Thomas Jefferson to Robert Patterson, 8 April 1813 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
5Thomas Jefferson to Robert Patterson, 29 May 1812 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
6Thomas Jefferson to Robert Patterson, 22 December 1815 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
7Thomas Jefferson to Robert Patterson, 27 December 1812 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
8Thomas Jefferson to Robert Patterson, 13 October 1815 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
9Thomas Jefferson to John Vaughan, 15 January 1816 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]
10Thomas Jefferson to Robert Patterson, 11 September 1811 (Jefferson Papers)
clocks; TJ’s astronomical case clock [index entry]