A special election was held in Pennsylvania's 11th congressional district on October 8, 1805 to fill a vacancy left by the resignation of John B. Lucas (DR) before the first session of the 9th Congress to take a position as district judge for the District of Louisiana.
Election results
Smith took his seat December 2, 1805
References
Pennsylvania's 11th congressional district special election, 1805 Wikipedia(Text) CC BY-SA