1Thomas Jefferson to Isaiah Thomas, 14 October 1820 (Jefferson Papers)
Thomas, Isaiah; and American Antiquarian Society [index entry]
2American Antiquarian Society to Thomas Jefferson, [received 7 April 1822] (Jefferson Papers)
Thomas, Isaiah; and American Antiquarian Society [index entry]
3Enclosure: Report of the American Antiquarian Society, 23 October 1821, enclosure no. 1 in American Antiquarian Society … (Jefferson Papers)
Thomas, Isaiah; and American Antiquarian Society [index entry]