April 2.--Broke through the enemy's line near Hatcher's Run, moving to the right toward Petersburg, driving them before us until the main line of works around the city was reached. At 1 p.m. assaulted Fort Gregg, which was carried after a desperate struggle. Loss in killed, wounded, and missing, 419. [Yankee report]

.........

In the fighting attendant upon these operations various batteries of the Third Corps were captured. The conduct of officers and men was worthy of all praise, and that of the drivers and supernumeraries of the artillery, who had been by General Walker armed with muskets, deserves special mention. Those in Fort Gregg fought until literally crushed by numbers, and scarcely a man survived.
-Report of Brig. Gen. William N. Pendleton, C. S. Army, Chief of Artillery.