D. No. 4. Siege of Petersburg, VA., from July 9th to July 31st, 1864. Fort Prescott Constructed Under the Direction of Major J.C. Duane. October 20, 1864. (OR Atlas 107:2)

Source:

Atlas to Accompany the Official Records, Plate 107, Map 2: D. No. 4. Siege of Petersburg, VA., from July 9th to July 31st, 1864. Fort Prescott Constructed Under the Direction of Major J.C. Duane. October 20, 1864. ↩