The marker to the King William Artillery is northwest of Gettysburg on Oak Hill. (Tour map: North Confederate Avenue) The battery was commanded at the Battle of Gettysburg by Captain William Pleasants Page Carter.

Marker for the King William (Virginia) Artillery of the Army of Northern Virginia at Gettysburg

From the marker:

Army of Northern Virginia 
Ewell’s Corps Rodes’s Division
T H. Carter’s Battalion W. P. Carter’s Battery
The King William Artillery
Two 10 Pounder Parrotts Two Napoleons

July 1. Soon after arriving here it opened an enfilading fire on the Union forces near the Chambersburg Pike causing some to seek shelter in the railroad cuts. Their guns replied slowly but not without inflicting some losses on the Battery in its exposed position. Later in the day it moved to the foot of the ridge to aid Doles’ Brigade in repelling the Eleventh Corps and rendered effective service. When the fight ended by the withdrawal of the First Corps it pursued the Union forces to the edge of the town.

July 2. In position but was not engaged.

July 3. The Parrott guns on Seminary Ridge near the railroad cut took part in the cannonade preceding Longstreet’s assault.

July 4. After nightfall began the march to Hagerstown.

Losses Killed 4 Wounded 7 Ammunition expended 572 rounds.