In his adulthood, Bruce would take the middle name Kelso; he is therefore commonly known as Blanche K. Bruce. A few years after the Civil War started, Bruce ran away to Lawrence, Kansas and tried unsuccessfully to sign up with the Union Army. He moved back to Missouri in 1864, near the end of the Civil War. Living as a free man and inspired by his own passion for learning, Bruce started a school for black children in Hannibal. According to some accounts, in 1866 Bruce attended Oberlin College in Ohio and stayed on for two years, although Oberlin has failed to produce any records to support this theory. In 1868 he relocated to Mississippi and became a cotton farmer. Over time, he would accumulate 640 acres of land for his plantation. Bruce made his foray into politics in 1870, when the Mississippi Senate elected him its sergeant-at-arms. In 1874, the Mississippi state legislature elected Bruce to be its representative in the U.S. Senate, making him the second African-American to hold the position. He served from 1875-1881, and thus Bruce became the first African-American citizen to work a full term in the United States