1. Danger beneath the waves: a history of the confederate submarine H.L. Hunley;Kloeppel,1987
2. Alexander WA. The true stories of the Confederate submarine boats. The Daily Picayune. New Orleans, LouisianaSunday June 29, 1902. p. 6-7.
3. H.L. Hunley site assessment;Murphy,1998
4. Tale of the torpedo. The Blue Light. Charleston, South Carolina: Friends of the Hunley; 2014. p. 8-11.
5. More surprises discovered in H.L. Hunley. [press release]. Charleston, South Carolina: Friends of the Hunley; May 4, 2001. www.hunley.org.