From the monument:
Army of the Potomac
Second Division, First Brigade
Fourteenth U.S. Infantry
Captain Crotius R. Giddings, Commanding
July 2. Arrived in the morning and took position with the Brigade and Division near the Twelfth Corps on the right. Moved with the Division from the right to the left of the line and at 5 P. M. with the Brigade moved across Plum Run near Little Round Top and supported the Second Brigade in its advance to the crest of the rocky wooded hill beyond and facing left engaged the Confederates but retired under heavy fire on both flanks and from the rear after the Confederates had possession of the Wheatfield in the rear of the Brigade and went into position on Little Round Top.
July 3. Remained in same position.
Casualties Killed 16 Men Wounded 2 Officers and 106 Men Missing 4 Men
See more on the 14th United States Infantry Regiment in the Civil War