sentences:  He served as judge of the Circuit Court in Missouri from 1847–1861, and as delegate to the Missouri Constitutional Convention in 1861.That same year he was elected to the 37th Congress as a replacement for John Bullock Clark, who had been expelled from Congress for taking up arms against the United States.He was elected on his own merit in 1862 and served from January 20, 1862 until March 4, 1865.