September 1861 • to October >

Commanded by Brigadier General Silas Casey

Casey’s Provisional Division acted as a receiving depot for new regiments, which were trained and organized into brigades or attached to existing units.

5th New Jersey Infantry Regiment	Colonel Samuel H. Starr	from Trenton 8/29
6th New Jersey Infantry Regiment	Colonel James T. Hatfield	from Trenton 9/10
7th New Jersey Infantry Regiment	Colonel Joseph W. Revere	from Trenton 9/19
8th New Jersey Infantry Regiment	Colonel Adolphus J. Johnson	from Trenton 9/14
4th New Hampshire Infantry Regt.	Colonel Thomas J. Whipple	from Manchester NH 9/30
68th New York Infantry Regiment	Colonel Robert J. Betge	from New York City 8/24
73rd Pennsylvania Infantry Regiment	Colonel John A. Koltes	from Philadelphia 9/24
75th Pennsylvania Infantry Regiment	Colonel Henry Bohlen	from Philadelphia 9/26
100th Pennsylvania Infantry Regiment	Colonel Daniel Leasure	from Pittsburg 9/2