McClernand's Expedition Page 40

GENERAL ORDERS,} WAR DEPARTMENT, ADJT. General 'S OFFICE,
Numbers 210. } Washington, December 18, 1862.
By the direction of the President the troops in the Department
of the Tennessee and those of the Department of the Missouri
operating on the Mississippi River will be divided into four
army corps, to be numbered the Thirteenth, Fifteenth,
Sixteenth, and Seventeenth.
Major General J. A. McClernand is assigned to the command of
the Thirteenth Army Corps;
Page433 CHAP.XXIX.] CORRESPONDENCE, ETC.- UNION.
Major General W. T. Sherman to the command of the Fifteenth
Army Corps;
Major General S. A. Hurlbut to the command of the Sixteenth
Army Corps; and
Major General J. B. McPherson to the command of the
Seventeenth Army Corps.
By order of the Secretary of War:
E. D. TOWNSEND,
Assistant Adjutant-General.