26th United States Congress
The 26th United States Congress was a meeting of the legislative branch of the United States federal government, consisting of the United States Senate and the United States House of Representatives. It met in Washington, D.C., from March 4, 1839, to March 4, 1841, during the third and fourth years of Martin Van Buren's presidency.
Source: Wikipedia — 26th United States Congress (CC BY-SA 4.0)