William Grebe (August 4, 1838 – December 24, 1916) was awarded the Medal of Honor for his actions on August 31, 1864 at the Battle of Jonesborough when, "While acting as aide and carrying orders across a most dangerous part of the battlefield, being hindered by a Confederate advance, Captain Grebe seized a rifle, took a place in the ranks and was conspicuous in repulsing the enemy." He received his medal on February 24, 1889.