Photo #: NH 101013 O-Boats of Submarine Division Eight At the Charleston Navy Yard, South Carolina, circa Christmas 1918. Note holiday greenery displayed on the submarines' superstructures. The three outboard submarines are (from left to right): USS O-6 (Submarine # 67); USS O-3 (Submarine # 64); and USS O-7 (Submarine # 68). The two-stack ship in the left center distance is probably USS Dubuque (Gunboat # 17). Copied from the collection of David J. Lohr, by courtesy of Radioman 1st Class Pamela J. Boyer, USN, 1986. U.S. Naval History and Heritage Command Photograph.