Scanned by
              Internet Archive
          Notes
              Cropped, sized, and prepared for use here by John Osborne, Dickinson College, April 23, 2013. 
Image type
              photograph
          Original caption
              Charles C. Davis, Major, 7th Pennsylvania Cavalry,  Born Harrisburg, Pa., Aug. 15, 1830.
          Source citation
              Walter Frederick Beyer, Oscar Frederick Keydel, Deeds of Valor: from records in the archives of the United States government; how American heroes won the Medal of Honor ... (Detroit, MI: Perrien-Keydel Co., 1901), I: 216.