 Battery Phillips was north of Corona Female College, Battery Williams was northeast of Phillips, and Battery Robinett was north of Williams and west of Corinth.Battery Williams contained 30-pounder Parrott rifles while Battery Robinett was armed with three 20-pounder Parrott rifles and manned by Company C of the 1st U.S. Infantry Regiment.On the first day, Captain Henry Richardson's Battery D, 1st Missouri Light Artillery helped repel two Confederate attacks but lost one gun.