- All
- AOP 12th Corps (Infantry) - Slocum, Williams
- AOP 12th Corps, 1st Division - Williams, Ruger
- AOP 12th Corps, 1st Division, 1st Brigade - McDougall
- AOP 12th Corps, 1st Division, 2nd Brigade - Lockwood
- AOP 12th Corps, 1st Division, 3rd Brigade - Ruger, Colgrove
- AOP 12th Corps, 2nd Division - Geary
- AOP 12th Corps, 2nd Division, 1st Brigade - Candy
- AOP 12th Corps, 2nd Division, 2nd Brigade - Kane, Cobham
- AOP 12th Corps, 2nd Division, 3rd Brigade - Greene
AOP 12th Corps, 2nd Division - Geary
Who were Geary’s 2nd Division brigade commanders?
1st Brigade
- Col. Charles Candy (1832-1910)
2nd Brigade
- Brig. Gen. Thomas Kane (1822-83), who was ill during the Battle of Gettysburg
- Col. George A. Cobham (1825-64), covering for Kane
3rd Brigade
- Brig. Gen. George S. Greene (1801–99)
Who commanded the 2nd Division, 12th Corps?


Brig. Gen. John W. Geary (1819–73)
Meade => Slocum/Williams => Geary
You will find a bronze statue of Geary at the intersection of Williams and Slocum Avenues on the ascent to the summit of Culp’s Hill.
AOP 12th Corps, 1st Division - Williams, Ruger
Who were Williams’ 1st Division brigade commanders?
1st Brigade
- Col. Archibald L. McDougall (1817-64)
2nd Brigade
- Brig. Gen. Henry H. Lockwood (1814-99)
3rd Brigade
- Brig. Gen. Thomas H. Ruger (1833-1907), until July 2, when Ruger covered for Williams who covered for Slocum. (Slocum assumed command of the Union right wing.)
- Col. Silas Colgrove (1816–1907), covering for Ruger.
Colgrove Avenue connects Baltimore Pike to Spangler’s Spring in the Culp’s Hill area.
Who commanded the 1st Division, 12th Corps?


Brig. Gen. Alpheus S. Williams (1810–78), until July 2.
Brig. Gen. Thomas H. Ruger (1833-1907), on July 2, when Ruger covered for Williams who covered for Slocum. (Slocum assumed command of the Union right wing.)
Meade => Slocum/Williams => Williams/Ruger
AOP 12th Corps (Infantry) - Slocum, Williams
Who were Slocum’s 12th Corps division commanders?
1st Division
- Brig. Gen. Alpheus S. Williams (1810–78), until July 2, when Williams covered for Slocum. (Slocum assumed command of the Union right wing.)
- Brig. Gen. Thomas H. Ruger (1833-1907), covering for Williams.
2nd Division
- Brig. Gen. John W. Geary (1819–73)
Which of Slocum’s division commanders have park avenues named after them?
(The avenues at Gettysburg National Military Park follow the battle lines of commanders for which they are named. Knowing this can really help one to get oriented on the battlefield.)
Brig. Gen. Alpheus S. Williams (1810–78)
- Williams Avenue is on the southwest slope of Culp’s Hill. It connects Slocum Avenue to Wainwright Avenus in Stevens’ Knoll.
Brig. Gen. John W. Geary (1819–73)
- Geary Avenue is south of Culp’s Hill summit. It connects Spangler’s Spring to Pardee Field and Slocum Avenue near Williams.
Which of Slocum’s division commanders have statues at Gettysburg?
Brig. Gen. John W. Geary (1819–73), 2nd Division, 12th Corps
- Bronze statue at the intersection of Williams and Slocum Avenues on the ascent to the summit of Culp’s Hill
What symbol identifies the 12th Infantry Corps on Gettysburg monuments?
A star
Who commanded the Union 12th Corps?


Maj. Gen. Henry W. Slocum (1827–94) – Outranking Howard, Slocum took charge of the army until Meade arrived. Slocum then retained operational control of the Union right near Culp’s Hill.


Brig. Gen. Alpheus S. Williams (1810–78) – Covering for Slocum
Meade => Slocum/Williams
AOP 12th Corps, 2nd Division, 3rd Brigade - Greene
Who commanded the 3rd Brigade of Geary’s Division?
Brig. Gen. George S. Greene (1801–99)
Meade => Slocum/Williams => Geary => Greene
AOP 12th Corps, 2nd Division, 2nd Brigade - Kane, Cobham
Who commanded the 2nd Brigade of Geary’s Division?
Brig. Gen. Thomas Kane (1822-83), who was ill during the Battle og Gettysburg
Col. George A. Cobham (1825-64), covering for Kane
Meade => Slocum/Williams => Geary => Kane/Cobham
AOP 12th Corps, 2nd Division, 1st Brigade - Candy
Who commanded the 1st Brigade of Geary’s Division?
Col. Charles Candy (1832-1910)
Meade => Slocum/Williams => Geary => Candy
AOP 12th Corps, 1st Division, 3rd Brigade - Ruger, Colgrove
Who commanded the 3rd Brigade of Williams’ Division?
Brig. Gen. Thomas H. Ruger (1833-1907), until July 2, when Ruger covered for Williams who covered for Slocum. (Slocum assumed command of the Union right wing.)
Col. Silas Colgrove (1816–1907), covering for Ruger.
Meade => Slocum/Williams => Williams/Ruger => Ruger/Colgrove
AOP 12th Corps, 1st Division, 2nd Brigade - Lockwood
Who commanded the 2nd Brigade of Williams’ Division?
Brig. Gen. Henry H. Lockwood (1814-99)
Meade => Slocum/Williams => Williams/Ruger => Lockwood
AOP 12th Corps, 1st Division, 1st Brigade - McDougall
Who commanded the 1st Brigade of Williams’ Division?
Col. Archibald L. McDougall (1817-64)
Meade => Slocum/Wiliams => Williams/Ruger => McDougall