The Twelfth Corps was also known as Slocum’s Corps.
About the Main Monument
When was it dedicated? Erected December 1906.
What is it made out of? Foundation: Concrete. Monument: Granite. Plaque: Bronze.
What size is it? Rough-hewn monolith, 4’2?x2’4?x 7?H. Bronze inscription tablet, 3’7?x4’1?, mounted on finished face of monolith.
Who made it? Albert Russell & Sons Co. of Newburyport, Massachusetts. Erected by the United States War Department.
What does it depict? A rectangular granite monument, with a large bronze tablets thereon, describing the engagements and movements of each army corps. Five-pointed Star Corps Badge incorporated in center of tablet top.
What does it honor? One of the Union army corps monuments, denoting the service of the Twelfth Corps, Army of the Potomac.
How is it inscribed? The monument reads,
ARMY OF THE POTOMAC TWELFTH CORPS Major General Henry W. Slocum Brigadier General Alpheus S. Williams First Division Brigadier General Alpheus S. Williams Brigadier General Thomas H. Ruger Second Division Brigadier General John W. Geary Artillery Brigade Lieutenant Edward D. Muhlenberg Provost Guard Tenth Maine (Four Companies) July 1. Marched from near Littlestown to Two Taverns by the afternoon. Hearing the 1st and 11th Corps were engaged at Gettysburg the Corps advanced on the Baltimore Pike. Williams’ Division to a position east of Rock Creek Geary’s Division to the left of Union line extending to the summit of Little Round Top. July 2. In the morning the Corps took position on the right of 1st Corps on a line extending from the top of Culp’s Hill southeasterly across the low meadow into McAllister’s woods. Later in the day the Corps except Greene’s Brigade was withdrawn to support the left of the Army Johnson’s Confederate Division at night advanced under cover of darkness and took possession of the works on the Corps Line on right of Greene’s Brigade. About midnight the Corps returned and finding Johnson’s Division in possession of the works formed line in front of that Division. July 3. Before 1 A. M. the artillery of the Corps and Rigby’s Maryland Battery from Reserve Artillery in all 26 guns were so placed as to command the line occupied by Johnson’s Division and at daylight opened fire under cover of which the infantry was advanced and attacked the Confederate position and after a contest lasting seven hours recaptured the works. Many prisoners and 5,000 small arms were captured. In the afternoon the Corps was in readiness to move. July 4. Gen. Slocum in the morning advanced with a detachment of Ruger’s Division and a battery and found that the Confederates in front had retired. Casualties Killed 18 Officers 186 Men Wounded 43 Officers 769 Men Captured or Missing 2 Officers 64 Men Total 1082
When was this photograph taken? February 26, 2012.
Where is it located? Located Gettysburg National Military Park, Gettysburg, Pennsylvania 17325. Located South side of Slocum Ave, Culp’s Hill.
Is this monument located along the NPS Auto Tour route? Located along the extended tour route that includes Culp’s Hill.
Has this monument been moved or changed? This monument has not been moved or materially altered.
Secondary Monuments and Markers
Photographed: September 20, 2009.
Location: Baltimore Pike near Power’s Hill. Located on Baltimore Pike, below Power’s Hill. Monument is located on the map above by a RED pushpin.
Description: Erected by the Gettysburg National Parks Commission and completed in June 1913; consists of steel cannon mounted on a granite base. Denotes the location of the Twelfth Corps, Army of the Potomac headquarters. Rough-hewn, 3 course base, 3’2″ sq. 2’7″ high. Wrought iron, cannon tube mounted upright on base, w/ bronze 5-point star attached. Overall, 10’6″ high. Bronze inscription tablet and location tablet on West face.
Commander: Maj. Gen. Henry Warner Slocum (September 24, 1827 – April 14, 1894), was a Union general during the American Civil War and later served in the United States House of Representatives from New York. During the war, he was one of the youngest major generals in the Army and fought numerous major battles in the Eastern Theater and in Georgia and the Carolinas. Controversy arose from his conduct at the Battle of Gettysburg, where he was accused of indecision and a dilatory advance to the battlefield, earning him the derogatory nickname “Slow Come”. More about this officer.
After Action Report: After Action Report of Brig. Gen. Alpheus S. Williams (will open a pop up window).