There are two markers to the Louisiana Guard Artillery at Gettysburg. One is northeast of town on Jones Battalion Avenue (Tour map: Jones Avenue) and the second east of town on the East Cavalry Battlefield on Confederate Cavalry Avenue (Tour map: East Cavalry Battlefield – north end).
The battery was commanded at the beginning of the campaign by Captain C. Thompson, who was killed on June 14 at Winchester. Captain Charles Green then took over and commanded the battery at the Battle of Gettysburg.
From the Jones Battalion Avenue marker:
July 1. Arrived on the field with Early’s Division. Placed in position to the right of Tanner’s Battery on the north side of Rock Creek and opened fire on Union troops on south side of creek continued firing with effect until the Confederate infantry was in position and advancing.
July 2. Occupied the position of the previous day before sunset was ordered to General Hampton at Hunterstown with a section of Parrott guns. Engaged Battery M 2nd U.S. Fell back a mile and remained for the night.
July 3. Moved forward with the cavalry about 2 P. M. Guns placed in position and opened on a column of advancing cavalry. Received a severe fire and ordered to be withdrawn. Again engaged in the afternoon.
Casualties Killed 2 Wounded 5
Ammunition expended 161 rounds
From the East Cavalry Battlefield marker:
Army of Northern Virginia
Ewell’s Corps Early’s Division
Jones’s Battalion Green’s Battery
Lousiana Guard Artillery
Two 10 Pounder Parrotts Two 3 Inch Rifles
July 3. After taking part in the fighting on the previous two days at Gettysburg and Hunterstown this Battery being detached from its Battalion brought its Parrott guns here and rendered important service in the cavalry battle not withdrawing until after dark.
Losses Killed 2 Wounded 5 Total 7 Horses disabled 2.