 The first session was October 26, 1807-April 25, 1808 (182 days) and the second session was November 7, 1808-March 3, 1809 (117 days).A numerical rank is assigned to each of the 142 members initially elected to the 10th Congress.Other members, who were not the first person elected to a seat but who joined the House during the Congress, are not assigned a number.