The election was held on April 15, 1862. It was the second of four Chicago mayoral elections which took place during the course of the American Civil War. It was also last regularly-scheduled Chicago mayoral election to a one-year term.
Sherman had been supported by a nonpartisan ticket which bore the slogan "for the Union and the Constitution".
Due to the fact that his son was a noted brigadier in the Union Army, Sherman was able to comfortably avoid accusations that his own loyalties sided anywhere but with the Union.