Union Order of Battle at Gettysburg
Army of the Potomac, XII Corps

Henry W. Slocum, Commander, Major General | Born in New York, Age 35 | Wikitree Listing

1st Division, XII Corps Brigadier General Alpheus S. Williams Born in Connecticut Age 52 Wikitree Listing	2nd Division, XII Corps White Star Division Brigadier General John W. Geary Born in Pennsylvania Age 43 Wikitree Listing	Artillery Brigade, XII Corps First Lieutenant Edward D. Muhlenberg Born in Pennsylvania Age 32 Wikitree Listing
1st Division Information	2nd Division Information	Artillery Brigade Information