http://en.wikipedia.org/wiki/Daniel_S._Norton

NORTON, Daniel Sheldon, a Senator from Minnesota; born in Mount Vernon, Knox County, Ohio, on April 12, 1829; pursued classical studies and graduated from Kenyon College, Gambier, Ohio; served in the Mexican War; after the war returned to Ohio; studied law; admitted to the bar and commenced practice in Mount Vernon in 1852; moved to St. Paul, Minn., in 1855, and then to Winona, Minn., in 1856, where he continued the practice of law; member, State house of representatives 1857-1860; member, State senate 1861-1864; elected as a Unionist to the United States Senate and served from March 4, 1865, until his death in Washington, D.C. on July 13, 1870; interment in Greenmount Cemetery, Baltimore, Md.