United States Regiments & Batteries > Pennsylvania > Infantry
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1861
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| May 1 | Organized at Philadelphia |
| May 7 | Mustered into United States servie for three months under Colonel Joshua T. Owen, Lieutenant Colonel Dennis Heenan and Major Dennis O’Kane |
| June 3 | Moved to Chambersburg, Pa. Attached to Negley’s 5th Brigade, Keim’s 2nd Division, Patterson’s Army |
| June 16 | Moved to Hagerstown, Md. |
| June 18 | to Williamsport |
| July 3 | Occupation of Martinsburg |
| July 15 | Advance on Bunker Hill |
| July 17 | At Charlestown |
| July 27 | General Patterson requested the regiment remain in service beyond its original three months until replacements arrived, and the regiment volunteered to extend its service by two weeks. |
| August 10 | Moved to Harper’s Ferry; then by rail to Baltimore and Philadelphia and mustered out |