Battery I First U.S. Artillery

Battery I of the First U.S. Artillery, part of the Army of the Potomac's Second Corps Artillery Brigade, was equipped with six 12-pounders and was commanded by Lieut. George A. Woodruff and later by Lieut. Tully McCrea. On July 2 and 3, it arrived and took position in Ziegler's Grove on the left of Evergreen Cemetery, where it was actively engaged and helped repel Longstreet's assault. Lieut. Woodruff was mortally wounded on the 3d, and command then passed to Lieut. Tully McCrea. Its casualties were 1 man killed, 1 officer wounded, and 23 men wounded.

Gettysburg, Pennsylvania · United States