1816–17 United States House of Representatives elections
The 1816–17 United States House of Representatives elections were held on various dates in various states between April 30, 1816, and August 14, 1817. Each state set its own date for its elections to the House of Representatives before the first session of the 15th United States Congress convened on December 1, 1817.
Source: Wikipedia — 1816–17 United States House of Representatives elections (CC BY-SA 4.0)