Louisiana−Missouri Territory: Sources

Billon (1886). Billon, Frederic L. Annals of St. Louis in its Early Days under the French and Spanish Dominations. St. Louis: F. Billon, 1886. online
Missouri Convention 1820. Journal of the Missouri State Convention. St. Louis: I. N. Henry and Co., 1820 online
Statutes at Large. The Public Statutes at Large of the United States of America: from the organization of the government in 1789 to March 3, 1845. Boston, Charles C. Little and James Brown, 1845-1846, vol. 1-4 || The Public Statutes at Large of the United States of America: from the organization of the government in 1789 to March 3, 1845. Boston: Little, Brown and Company, 1856-1867, vol. 5-8 || The Statutes at Large and Treaties of the United States of America. Boston: Little, Brown and Company, 1855-1862, vol. 9-11 || The Statutes at Large, Treaties, and Proclamations, of the United States of America. Boston: Little, Brown and Company, 1863-1869, vol. 12-15 || The Statutes at Large and Proclamations of the United States of America. Boston: Little, Brown and Company, 1871-1873, vol. 16-17 || The Statutes at Large. Washington: Government Printing Office, 1875-1873, vol. 18-. online
Territorial Papers. Carter, Clarence Edwin; Bloom, John Porter (eds.) The Territorial Papers of the United States. Washington, D.C.: Government Printing Office, 1934-1975, 28 vols. online including vol. 9 covering the Territory of Orleans (1803-1812), vols. 13-15 covering the Territory of Louisiana-Missouri (1803-1820)
Transfer of Upper Louisiana. "Transfer of Upper Louisiana: Papers of Captain Amos Stoddard." Missouri Historical Society: Glimpses of the Past 2, No. 6−10 (1935): 78-122.