1st Army Corps

The monument to the First Army Corps is west of Gettysburg on Reynolds Avenue. (see map) It was erected by the Gettysburg National Military Park Commission in 1906.

There are two Headquarters Markers for the First Corps; the Doubleday marker on Reynolds Avenue (center right), and the Newton marker on Pleasonton Avenue. (bottom right)

From the Reynolds Avenue monument:

Army of the Potomac
First Corps
Major General John F. Reynolds
Major General Abner Doubleday
Major General John Newton

First Division Brigadier General James S. Wadsworth
Second Division Brigadier General John C. Robinson
Third Division Brigadier General Thomas A. Rowley
Major General Abner Doubleday
Artillery Brigade Colonel Charles S. Wainwright

July 1. Arrived at Gettysburg between 10 A. M. and noon. Relieved Buford's Cavalry and became engaged with Archer's and Davis's Brigades Heth's Division Hill's Corps. General Reynolds fell mortally wounded about 10.15 A. M. The Confederates having been reinforced from Hill's and Ewell's Corps made a vigorous attack at 2 P. M. with superior numbers along the entire line. At 4 P. M. the Corps retired and took positions on Culps Hill and Cemetery ridge.

July 2 & 3. Wadsworth's Division occupied the north point of Culps Hill connecting with 12th Corps on right and Robinson's and Rowley's Divisions on Cemetery Ridge with detachments elsewhere.

Casualties including Corps and Division Staff: Killed 42 Officers 624 Men Wounded 262 Officers 2969 Men Captured or Missing 80 Officers 2079 Men Total 6056

From the the Doubleday marker:

Army of the Potomac
1st Corps Headquarters,
Major General Abner Doubleday,
July 1 1863
were located 230 yards from here near the Pike

From the Newton marker:

Army of the Potomac,
1st Corps Headquarters,
Major General John Newton,
July 2 & 3, 1863