Source:
- Portion of base map: Bermuda Hundred. (1864-1865) From surveys under the direction of Bvt. Brig. Gen. N. Michler, Maj. of Engineers and Bvt. Lieut. Col. P. S. Michie, Capt. of Engineers, by command of Bvt. Maj. Genl. A. A. Humphreys, Brig. Genl. Fold3.com. Additional information added by Brett Schulte. ↩