1Nathaniel Bowditch to Thomas Jefferson, 30 March 1818 (Jefferson Papers)
books; on astronomy [index entry]
2Nathaniel Bowditch to Thomas Jefferson, 20 August 1818 (Jefferson Papers)
books; on astronomy [index entry]
3Nathaniel Bowditch to Thomas Jefferson, 30 October 1820 (Jefferson Papers)
books; on astronomy [index entry]