1Thomas Jefferson to William Maclure, 2 November 1817 (Jefferson Papers)
I thank you, dear Sir, for the copy of your Geology of the US. which you have been so kind as to...
2From Thomas Jefferson to William Maclure, 8 August 1825 (Jefferson Papers)
I recieved with great pleasure your letter of July 30. and with the more as it first informed me...
3From Thomas Jefferson to William Maclure, 19 October 1825 (Jefferson Papers)
Your favor of Sep. 24. was recieved in due time and with great thankfulness on behalf of our...