Union Order of Battle at Gettysburg
Army of the Potomac, I Corps, 3rd Division

1st Brigade, 2d Division, I Corps Brigadier General Thomas Algeo Rowley Born in Pennsylvania Age 50 Wikitree Information	2nd Brigade, 2d Division, I Corps Colonel Roy Stone Born in New York Age 26 Wikitree Information	2nd Brigade, 3d Division, I Corps Brigadier General George J. Stannard Born in Vermont Age 42 Wikitree Information
Regiments: 80th New York | 287 men | Roster 121st Pennsylvania | 263 men | Roster 142th Pennsylvania | 336 men | Roster 151th Pennsylvania | 467 men | Roster	Regiments: 143th Pennsylvania | 465 men | Roster 149th Pennsylvania | 450 men | Roster 150th Pennsylvania | 400 men | Roster	Regiments: 12th Vermont | 700 men | Roster 13th Vermont | 636 men | Roster 14th Vermont | 647 men | Roster 15th Vermont | 621 men | Roster 16th Vermont | 601 men | Roster