1Jeremiah Greenleaf to Thomas Jefferson, 23 June 1819 (Jefferson Papers)
Grammar Simplified; or, an Ocular Analysis of the English Language (J. Greenleaf) [index entry]
2Thomas Jefferson to Jeremiah Greenleaf, 5 July 1819 (Jefferson Papers)
Grammar Simplified; or, an Ocular Analysis of the English Language (J. Greenleaf) [index entry]
3Jeremiah Greenleaf to Thomas Jefferson, 17 May 1822 (Jefferson Papers)
Grammar Simplified; or, an Ocular Analysis of the English Language (J. Greenleaf) [index entry]