Near Sharpsburg in Washington County, Maryland — The American Northeast (Mid-Atlantic)
Twelfth Army Corps
Tyndale's Brigade, Greene's Division
Photographed By Craig Swain, February 9, 2008
1. Twelfth Army Corps Marker
Twelfth Army Corps.
Tyndale's Brigade, Greene's Division
Lt. Col. Hector Tyndale, 28th Penn. Infantry, Commanding.
Organization.
5th Ohio Infantry,
7th Ohio Infantry,
66th Ohio Infantry,
28th Pennsylvania Infantry.
September 17, 1862.
Tyndale's Brigade, on the right of the division, reached this point about 8 a.m., relieved a portion of Crawford's Brigade and engaged the Confederate infantry in the East Woods.
After a short and sharp contest, the enemy gave way and the brigade, obliquing to the left, crossed the Smoketown Road, entered the fields to the right of Mumma's burning buildings, and took position behind the ridge opposite the Dunkard Church.
Erected by Antietam Battlefield Board. (Marker Number 50.)
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° 29.007′ 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
this page online
Other nearby markers. At least 10 other markers are within walking distance of this marker. A different marker also named Twelfth Army Corps (here, next to this marker); Greene's Division, 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); William's Division, Twelfth Army Corps (about 400 feet away); a different marker also named Twelfth Army Corps (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 Tyndale's Brigade by Tablets.
Also see . . .
1. Antietam Battlefield. National Park Service
Photographed By Brian Scott, September 19, 2015
2. Twelfth Army Corps Marker
2. 1st Brigade, 2nd Division, XII Corps. Tyndale was wounded in the West Woods and replaced in command by Major Orrin J. Crane. Private John P. Murphy, of the 5th Ohio Infantry, was awarded the Medal of Honor for capturing the 13th Alabama's colors at Antietam. (Submitted on March 4, 2008, by Craig Swain of Leesburg, Virginia.)
3. Hector Tyndale. Hector Tyndale (March 24, 1821 - March 19, 1880) was a Union general during the American Civil War rising to the rank of Brevet Major General of Volunteers. He notably led brigades at the battles of Antietam and Wauhatchie. (Submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina.)
Photographed By Craig Swain, February 9, 2008
3. Tablet Cluster at the Intersection
From left to right numbers 50, 49, 48, and 17.
Photographed By Brian Scott, September 19, 2015
4. Twelfth Army Corps Marker
First From the Left
First From the Left
Photographed By Brian Scott
5. Major General Hector Tyndale (1821-1880)
He assumed command of the 1st Brigade, 2nd Division, XII Corps during the battle of Antietam. Tyndale led his brigade as part of George S. Greene's attack against the Dunker Church. Early in the fighting he was wounded in the hip but continued in command until wounded a second time in the head. He left the field to recover and would not return to command until late July, 1863.
Photographed By Craig Swain, February 9, 2008
6. Tyndale's Brigade Advance
Looking south from the Mansfield Monument. Tyndale's Brigade formed and advanced into the heart of the East Woods through this section. The house in the distance is at the intersection of the Smoketown Road and Cornfield Avenue. The Brigade drove a mixed group of Confederate defenders out of the East Woods. From there the Brigade pressed down the Smoketown Road. Past the woods, the Brigade continued down the Smoketown Road toward the Dunker Church. The action there is covered by another tablet.
Credits. This page was last revised on April 4, 2022. It was originally submitted on March 4, 2008, by Craig Swain of Leesburg, Virginia. This page has been viewed 760 times since then and 16 times this year. Photos: 1. submitted on March 4, 2008, by Craig Swain of Leesburg, Virginia. 2. submitted on October 26, 2015, by Brian Scott of Anderson, South Carolina. 3. submitted on March 4, 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 4, 2008, by Craig Swain of Leesburg, Virginia.
