1Benjamin Waterhouse to Thomas Jefferson, 21 June 1809 (Jefferson Papers)
Harvard University; B. Waterhouse’s professorship at [index entry]
2Benjamin Waterhouse to Thomas Jefferson, 26 March 1813 (Jefferson Papers)
Harvard University; B. Waterhouse’s professorship at [index entry]
3Benjamin Waterhouse to Thomas Jefferson, 1 May 1813 (Jefferson Papers)
Harvard University; B. Waterhouse’s professorship at [index entry]
4Benjamin Waterhouse to Thomas Jefferson, 1 September 1815 (Jefferson Papers)
Harvard University; B. Waterhouse’s professorship at [index entry]
5Benjamin Waterhouse to Thomas Jefferson, 14 September 1822 (Jefferson Papers)
Harvard University; B. Waterhouse’s professorship at [index entry]