^United States Congressional Elections, 1788-1997: The Official Results, by Michael J. Dubin (McFarland and Company, 1998)].
^"SEVENTEENTH CONGRESS"(PDF). Archived from the original(PDF) on December 13, 2012. Footnote 8: Resigned January 24, 1822, having been elected Senator.
^"SEVENTEENTH CONGRESS"(PDF). artandhistory.house.gov. Archived from the original(PDF) on December 13, 2012. Footnote 9: Elected to fill vacancy caused by resignation of Caesar A. Rodney, and took his seat December 2, 1822.