Near Sharpsburg in Washington County, Maryland — The American Northeast (Mid-Atlantic)
Twelfth Army Corps
Photographed By Craig Swain, February 9, 2008
1. Twelfth Army Corps Marker
Twelfth Army Corps
Maj. Gen. Jos. K. F. Mansfield, Commanding.
September 17, 1862.
The Twelfth Corps left its bivouac on the Line and Hoffman Farms at daylight, moved forward in column of battalions in mass and deployed in support of the First Corps, William's Division on the right and Greene's Division on the left. Its line extended from D.R. Miller's House on the Hagerstown Pike, in a southeasterly direction to and across the Smoketown Road. While the deployment was in progress, Maj. Gen. Mansfield was mortally wounded and carried from the field.
He was succeeded by Brig. Gen. A.S. Williams. This corps supported then relieved the First Corps.
Later in the day it formed in support of the First and Sixth Corps of the Army of the Potomac.
Erected by Antietam Battlefield Board. (Marker Number 27.)
Topics and series. This historical marker is listed in this topic list: War, US Civil. In addition, it is included in the Antietam Campaign War Department Markers series list. A significant historical date for this entry is September 17, 1862.
Location. 39° 29.064′ N, 77° 44.57′ W. Marker is near Sharpsburg, Maryland, in Washington County. Marker is at the intersection of Mansfield Avenue and Smoketown Road, on
this page online
Other nearby markers. At least 10 other markers are within walking distance of this marker. William's Division, Twelfth Army Corps (here, next to this marker); 12th Pennsylvania Cavalry (a few steps from this marker); a different marker also named Twelfth Army Corps (a few steps from this marker); First Army Corps (about 300 feet away, measured in a direct line); a different marker also named First Army Corps (about 400 feet away); Greene's Division, Twelfth Army Corps. (about 400 feet away); a different marker also named Twelfth Army Corps (about 400 feet away); a different marker also named Twelfth Army Corps (about 400 feet away); Mansfield (about 500 feet away); Major General Joseph K. F. Mansfield (about 700 feet away). Touch for a list and map of all markers in Sharpsburg.
Regarding Twelfth Army Corps. This marker is included on the East Woods Virtual Tour by Markers see the Virtual tour link below to see the markers in sequence.
Also see . . .
1. Antietam Battlefield. National Park Service site. (Submitted on March 3, 2008, by Craig Swain of Leesburg, Virginia.)
2. XII Corps, Army of the Potomac
Photographed By Brian Scott, September 19, 2015
2. Twelfth Army Corps Marker
3. Joseph K. Mansfield. Joseph King Fenno Mansfield (December 22, 1803 – September 18, 1862) was a career United States Army officer, civil engineer, and a Union general in the American Civil War, mortally wounded at the Battle of Antietam. (Submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina.)
Photographed By Craig Swain, February 9, 2008
3. Three War Department Tablets Flank the 12th Pennslyvania Cavalry Monument
Photographed By Brian Scott, September 19, 2015
4. Twelfth Army Corps Marker (Left)
Photographed By Brian Scott
5. Major General Joseph K.F. Mansfield (1803-1862)
His horse was hit and a bullet caught him squarely in the right chest. Writes Dr. Patrick Henry Flood, Surgeon, 107th NY Regiment, in a letter to his widow, "I found the clothing around his chest saturated with blood, and upon opening them, found he was wounded in the right breast, the ball penetrating about two inches from the nipple, and passing out the back, near the edge of the shoulder blade."
Photographed By Craig Swain, February 9, 2008
6. Looking North Down the Smoketown Road
Mansfield's XII Corps advanced from this direction into the East Woods to fall on line behind Ricketts' Division of the I Corps.
via American Battlefield Trust, unknown
7. East Woods Virtual Tour by Markers.
A collection of markers interpreting the action of during the Battle of Antietam around the East Woods.
(Submitted on March 8, 2008, by Craig Swain of Leesburg, Virginia.)
Click for more information.
(Submitted on March 8, 2008, by Craig Swain of Leesburg, Virginia.)
Click for more information.
Credits. This page was last revised on April 4, 2022. It was originally submitted on March 3, 2008, by Craig Swain of Leesburg, Virginia. This page has been viewed 774 times since then and 15 times this year. Photos: 1. submitted on March 3, 2008, by Craig Swain of Leesburg, Virginia. 2. submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina. 3. submitted on March 3, 2008, by Craig Swain of Leesburg, Virginia. 4, 5. submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina. 6. submitted on March 3, 2008, by Craig Swain of Leesburg, Virginia. 7. submitted on April 4, 2022, by Larry Gertner of New York, New York.
