On September 7, 1862, the U.S. War Department issued General Orders, 128, announcing that Major General John Pope had been transferred to command of the Department of the Northwest, as of September 6, 1862.
General Orders, No. 128.
War Dep’t, Adjutant General’s Office
Washington City, D.C., September 7, 1862.
The following orders are published for information and guidance of all concerned:
Washington City, D.C., September 6, 1862.
Ordered, That the Department of the Northwest, including the States of Wisconsin, Iowa, Minnesota, the Territories of Nebraska and Dacotah, with the troops raising and to be raised in that Department, be, and they are hereby, placed under the command of Major General John Pope, who will proceed forthwith to his command, establishing his headquarters at St. Paul, Minnesota.
EDWIN M. STANTON, Secretary of War.
By Order of the Secretary of War
L. THOMAS, Adjutant General