"Thomas Jefferson's Religious Beliefs". Thomas Jefferson Foundation. Retrieved July 24, 2016.

Primary sources

The Papers of Thomas Jefferson,  – the Princeton University Press edition of the correspondence and papers; vol 1 appeared in 1950; vol 41 (covering part of 1803) appeared in 2014.
"Founders Online," searchable edition
Jefferson, Thomas (November 10, 1798). "Thomas Jefferson, Resolutions Relative to the Alien and Sedition Acts". The Founder's Constitution. University of Chicago Press. Retrieved November 2, 2015.
Thomas, Jefferson (1914). Autobiography of Thomas Jefferson 1743–1790. New York: G.P. Putnam's Sons.
"Thomas Jefferson". University of Virginia Library. Retrieved September 2, 2009.
Jefferson, Thomas (1900). The Life and Writings of Thomas Jefferson. pp. 265–266.
—— (1853). Notes on the State of Virginia. J.W. Randolph. (Note: This was Jefferson's only book; numerous editions)
—— (1977). The Portable Thomas Jefferson. Penguin Press. ISBN 978-1101127667.
Yarbrough, Jean M.; Jefferson, Thomas (2006). The Essential Jefferson. Hackett Publishing. ISBN 978-1603843782.

Web site sources

"Gathering Voices: Thomas Jefferson and Native America". American Philosophical Society. Archived from the original on August 13, 2016. Retrieved August 11, 2016.
"Thomas Jefferson to Horatio G. Spafford, 17 March 1814". U.S. Government: National Archives. Retrieved March 25, 2019.
"American President: A Reference Resource". 