1. A clipping of a portrait of Union Major-General Jacob D. Cox Date: unknown Format: Still image Access: Public
2. Sketch reflecting “Longitudinal elevation in section and plan view of the Confederate Submarine Boat Hunley From Sketches by W. A. Alexander.” Alexander was one of the builders of the H. L. Hunley Date: unknown Format: Still image Access: Log In Required
3. Sketches with description about the spearheaded torpedo with which H. L. Hunley sank the USS Housatonic. Sketches drawn in accordance with Von Kolitz description and with the engineering advice of C. Allen Gilbert of Douglas Aircraft Date: unknown Format: Still image Access: Log In Required