1Thomas Jefferson to William D. Meriwether, 3 June 1816 (Jefferson Papers)
2Thomas Jefferson to William D. Meriwether, 30 October 1816 (Jefferson Papers)
3Thomas Jefferson to William D. Meriwether, 16 December 1816 (Jefferson Papers)
4Thomas Jefferson to William D. Meriwether, 30 December 1816 (Jefferson Papers)