Near Gettysburg in Adams County, Pennsylvania — The American Northeast (Mid-Atlantic)
1st Corps Headquarters
Army of the Potomac
— Major General Abner Doubleday —
By Craig Swain, November 1, 2008
1. 1st Corps Headquarters Marker
A breach down 4.5-inch Siege Rifle was used to indicate the Corps headquarters. A bronze disk, the circle or moon shape of the First Corps symbol, was fixed on the cannon, but is missing now.
1st. Corps Headquarters
Major General
Abner Doubleday
July 1, 1863
Were located 230 yards S.E.
from here, near the pike
Erected 1913 by Gettysburg National Military Park Commission.
Topics. This historical marker is listed in this topic list: War, US Civil.
Location. 39° 50.134′ N, 77° 14.976′ W. Marker is near Gettysburg, Pennsylvania, in Adams County. Marker is on Reynolds Avenue, on the right when traveling north. Located on the First Day Battlefield, north of McPherson Woods, in Gettysburg National Military Park. Touch for map. Marker is in this post office area: Gettysburg PA 17325, United States of America. Touch for directions.
Other nearby markers. At least 8 other markers are within walking distance of this marker. 8th Illinois Cavalry (within shouting distance of this marker); First Division (within shouting distance of this marker); First Corps (within shouting distance of this marker); First Brigade (within shouting distance of this marker); Battery L, 1st New York Light Artillery (about 300
By Craig Swain, November 1, 2008
2. Close Up of the Plaques
Also see . . . Reports of Maj. Gen. Abner Doubleday. Doubleday was in command of the Corps as Reynolds was commanding a "wing" of the Army. When Reynolds was killed in McPherson Woods, Doubleday had command of the field, at least for a short time. In his report, he explains the reasons for defending the ground north and west of Gettysburg:
There were abundant reasons for holding it, for it is the junction of seven great roads leading to Hagerstown, Chambersburg, Carlisle, York, Baltimore, Taneytown, and Washington, and is also an important railroad terminus. The places above mentioned are on the circumference of a circle of which it is the center. It was, therefore, a strategic point of no ordinary importance. Its possession would have been invaluable to Lee, shortening and strengthening his line to Williamsport, and serving as a base of maneuvers for future operations. (Submitted on January 11, 2009, by Craig Swain of Leesburg, Virginia.)
By Bill Coughlin, November 5, 2010
3. Doubleday's Headquarters Marker
This view of the 1st Corp Headquarters marker looks east, towards the town of Gettysburg. The cannon that marks the site of Lee's headquarters during the battle can be seen in the background to the right.
By Brian Scott, September 23, 2015
4. 1st Corps Headquarters Monument
By Craig Swain, November 1, 2008
5. Looking Southeast from the Headquarters Marker
Doubleday maintained a headquarters behind the lines, but in position to observe the action across the southern part of the First Corps front.
By Craig Swain, November 1, 2008
6. Markings on the Cannon
Most of the markings on the 4.5-inch Rifle are on the muzzle, which is clearly out of reach. However, the foundry would stamp its own number on the right rimbase (over the trunnion). Here the number "1308" allows positive identification of this piece as one cast by the Fort Pitt Foundry, Pittsburgh, Pennsylvania, in 1863. The fixture over the rimbase is a bracket for a sight post.
By Craig Swain, November 1, 2008
7. Looking North on Reynolds Avenue
The headquarters marker is just south of the intersection of Reynolds Avenue and Chambersburg Pike.
Credits. This page was last revised on May 26, 2020. It was originally submitted on January 11, 2009, by Craig Swain of Leesburg, Virginia. This page has been viewed 1,315 times since then and 22 times this year. Photos: 1, 2. submitted on January 11, 2009, by Craig Swain of Leesburg, Virginia. 3. submitted on November 13, 2010, by Bill Coughlin of North Arlington, New Jersey. 4. submitted on July 17, 2016, by Brian Scott of Anderson, South Carolina. 5, 6, 7. submitted on January 11, 2009, by Craig Swain of Leesburg, Virginia.
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