Scanned by
              John Osborne, Dickinson College
          Scan date
              Notes
              Sized, cropped, and adjusted for use here by John Osborne, Dickinson College, November 7, 2011.
Image type
              engraving
          Original caption
              Lieutenant A.D. Harrell, commanding U.S. Gunboat Union, Potomac Flotilla
          Source citation
              Frank Leslie's Illustrated Newspaper,  November 9, 1861, p. 391.