Battle of South Mountain
Two future presidents, Rutherford B. Hayes and William McKinley, fought at Fox's Gap during the Battle of South Mountain, as part of the 23rd Ohio Infantry—Hayes as its commander, and McKinley a commissary sergeant. Hayes would end the war as a brevet major general and McKinley a brevet major, and they would be elected to the presidency twenty years apart—Hayes in 1876, and McKinley in 1896.