Casey had been elected for a third term to the 10th United States Congress in the 1806 elections. His death left a vacancy for the remainder of the 9th Congress, which remained unfilled, as well as for the 10th Congress.
|John A. Elmore||Federalist||253||11.9%|
Calhoun took his seat October 26, 1807, at the start of the 1st session of the 10th Congress.
- United States Congressional Elections, 1788-1997: The Official Results, by Michael J. Dubin (McFarland and Company, 1998)
- 9th Congress membership roster Archived 2012-12-13 at the Wayback Machine
- A New Nation Votes
- Party affiliation not given in source
- 10th Congress membership roster Archived 2013-03-06 at the Wayback Machine