On January 10, 1863, Major General Franz Sigel issued General Orders, No. 1 (Grand Reserve Division, Army of the Potomac), assuming command of the Grand Reserve Division, Army of the Potomac.
General Orders, No. 1.
Hdqrs. Grand Reserve Division,
Stafford Court House, Va., January 10, 1863
I. In obedience to orders received from Headquarters Army of the Potomac, I hereby assume command of the grand reserve division consisting of the Eleventh and Twelfth Corps. Brigadier-General Stahel, as senior officer on duty with the Eleventh Corps will take command of the same.
II. Commanders of corps will send in, with the least possible delay, a report of their commands, and in future the regular reports of the 10th, 20th, and last day of the month will be forwarded to Lieut. Col. T.A. Meysenburg, assistant adjutant-general at these headquarters.
Major-General, U.S. Volunteers