Commanding Officer on the Antietam Campaign:
MGen John E. Wool
This Army Corps' Chain of Command:
Units which make up this Army Corps:
Harpers Ferry Garrison
145th Pennsylvania Infantry
Pennsylvania State Militia (1862)
Unit history
An administrative area consisting of the States of New Jersey, Pennsylvania, Delaware and the Eastern Shores of Maryland and Virginia, and the Maryland Counties of Cecil, Harford, Baltimore and Ann Arundel. Designated the 8th Army Corps July 22, 1862. Headquarters at Baltimore, Maryland.
References & Notes
Organizational details from Dyer1
1 Dyer, Frederick H., A Compendium of the War of the Rebellion, Des Moines, Iowa: The Dyer Publishing Co., 1908 [AotW citation 1159]