1Thomas Jefferson to Patrick Kerr Rogers, 23 June 1819 (Jefferson Papers)
Your favor of May 21. was recieved in due time. the Visitors of the Visitors of the University of...
2From Thomas Jefferson to Patrick Kerr Rogers, 29 January 1824 (Jefferson Papers)
I have duly recieved your favor of the 14 th with the copy of your Mathematical principles of...