Near Sharpsburg in Washington County, Maryland — The American Northeast (Mid-Atlantic)

Twelfth Army Corps

Stainrook's Brigade, Greene's Division

Photographed By Craig Swain, February 9, 2008

1. Twelfth Army Corps Marker

Inscription. U.S.A.
Twelfth Army Corps.
Stainrook's Brigade, Greene's Division.
Col. Henry J. Stainrook, 109th Penn. Inf., Commanding.
Organization.
3d Maryland Infantry,
102d New York Infantry,
111th Pennsylvania Infantry.
September 17, 1862.
Stainrook's Brigade, on the left of the Division, advancing in line south of the Smoketown Road, relieved the left of Crawford's Brigade and engaged the Confederate infantry in the East Woods. Upon their retreat the Brigade followed through the East Woods, across the open ground south of Mumma's House to the ridge south-east of the Dunkard Church, where it was halted to replenish ammunition.

Erected by Antietam Battlefield Board. (Marker Number 49.)

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 month for this entry is September 1885.

Location. 39° 29.008′ N, 77° 44.516′ W. Marker is near Sharpsburg, Maryland, in Washington County. Marker is at the intersection of Smoketown Road and Mansfield Monument Road, on the right when traveling south on Smoketown Road. Located opposite the Mansfield Monument. Touch for map. Marker is in this post office area: Sharpsburg MD 21782, United States of America. Touch for directions.

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At least 8 other markers are within walking distance of this marker. Greene's Division, Twelfth Army Corps. (here, next to this marker); a different marker also named Twelfth Army Corps (here, next to this marker); First Army Corps (here, next to this marker); Mansfield (a few steps from this marker); Major General Joseph K. F. Mansfield (within shouting distance of this marker); a different marker also named First Army Corps (within shouting distance of this marker); a different marker also named Twelfth Army Corps (about 400 feet away, measured in a direct line); 12th Pennsylvania Cavalry (about 400 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.

Related markers. Click here for a list of markers that are related to this marker. Follow Stainrook's Brigade by tablets and monuments.

Also see . . .
1. Antietam Battlefield. National Park Service site. (Submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia.)

2. 2nd Brigade, 2nd Division, XII Corps. Antietam on the Web entry (Submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia.)

3. Henry J. Stainrook.

Photographed By Brian Scott, September 19, 2015

2. Twelfth Army Corps Marker

Henry J. Stainrook led a regiment of the Army of Virginia and the Army of the Potomac in the American Civil War. He briefly led a brigade at the Battle of Antietam. (Submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina.)

Tablet Cluster at the Intersection image. Click for full size.

Photographed By Craig Swain

3. Tablet Cluster at the Intersection

From left to right numbers 50, 49, 48, and 17.

Twelfth Army Corps Marker<br>Second From the Left image. Click for full size.

Photographed By Brian Scott, September 19, 2015

4. Twelfth Army Corps Marker
Second From the Left

Stainrook's Brigade Advance toward the Hagerstown Pike image. Click for full size.

Photographed By Craig Swain, February 9, 2008

5. Stainrook's Brigade Advance toward the Hagerstown Pike

Taken from the Smoketown Road, to the south of the marker location, looking southwest toward the Mumma Farm (white barn in the center left distance). Directly in the distant center is the Mumma Cemetery. Over the same ground Seymour's Brigade of Meade's Division fought earlier in the morning, Stainrook's Brigade advanced to finally wrestle control of the East Woods from the Confederates.

The Brigade's Advance image. Click for full size.

Photographed By Craig Swain, April 6, 2008

6. The Brigade's Advance

Looking from the Mumma Cemetery back toward the intersection of the Smoketown Road and Cornfield Avenue. This provides the opposite view of Stainrook's Brigade advancing from the previous photo.

East Woods Virtual Tour by Markers. image. Click for more information.

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.

Credits. This page was last revised on April 4, 2022. It was originally submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia. This page has been viewed 726 times since then and 20 times this year. Photos: 1. submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia. 2. submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina. 3. submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia. 4. submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina. 5. submitted on March 5, 2008, by Craig Swain of Leesburg, Virginia. 6. submitted on April 17, 2008, by Craig Swain of Leesburg, Virginia. 7. submitted on April 4, 2022, by Larry Gertner of New York, New York.