11Thomas Jefferson to Martin Oster, 2 August 1811 (Jefferson Papers)
12Thomas Jefferson to Martin Oster, 5 July 1812 (Jefferson Papers)
13Burwell Bassett to Thomas Jefferson, 20 July 1811 (Jefferson Papers)
14Enclosure: Littleton W. Tazewell to Martin Oster, 4 August 1812 (Jefferson Papers)
15Martin Oster to Thomas Jefferson, 29 August 1812 (Jefferson Papers)