Just before the purchase of Louisiana, President Jefferson had recommended to Congress (18th January 1803) the sending of an expedition to explore the headwaters of the Missouri, cross the Rockies and follow the streams to the Pacific. In accordance with the recommendation Meriwether Lewis and William Clark, both officers of the United States Army, with a considerable party left St Louis on the 14th of May 1804, ascended the Missouri to the headwaters, crossed the Rockies and, following the Columbia river, reached the ocean in November 1805.
After Lincoln's re-election in 1864 Blair thought that his former close personal relations with the Confederate leaders might aid in bringing about a cessation of hostilities, and with Lincoln's consent went unofficially to Richmond and induced President Jefferson Davis to appoint commissioners to confer with representatives of the United States.
Liberal support was given to the Confederacy, both in men and supplies, but Governor Vance, one of the ablest of the Southern war governors, engaged in acrimonious controversies with President Jefferson Davis, contending that the general government of the Confederacy was encroaching upon the prerogatives of the separate states.
Resolved upon peaceful measures, President Jefferson in January 1803 appointed Monroe envoy extraordinary and minister plenipotentiary to France to aid Robert R.
Throughout the war, too, he was so intensely concerned about states' rights and civil liberty that he opposed the exercise of extra-constitutional war powers by President Jefferson Davis lest the freedom for which the South was fighting should be destroyed.