How many men were President of the United States in the year 1881?

In year 1881, Rutherford Hayes completed his first and only four year term in office on March 4. He was replaced by newly elected James A. Garfield. However, Garfield was shot by Charles Guiteau on July 2, 1881, and died later that summer on September 19. His Vice President, Chester A. Arthur, became President and completed Garfield's term in 1885.