United States Army officer (1784-1869) during three consecutive U.S. wars: the War of 1812, the Mexican–American War, and the American Civil War. He was one of the four general officers of the United States Army in 1861 and was the one who had the most service. When the war began, Wool, age 77 and a brigadier general for 20 years, commanded the Department of the East. He was the oldest general on either side of the war. War-dated ALS signed “John E. Wool, Brig. Genl.,” one page both sides, 8 x 10, May 29, 1846. Addressed from Washington, D.C., a handwritten letter to “The Chief of the Ordinance,” in full: “Having been directed to superintend the inspection & muster of the Volunteers called into service of the U.S. from the states of Ohio, Indiana, Illinois, Kentucky, Tennessee & Mississippi destined for the frontier of Mexico. I am directed to enquire at the proper military bureau of the measures taken to supply the Volunteers at their several states rendezvous, & on the routes of march assigned with arms accouterments, ammunition, subsistence, camp-equipage, and means of transportation, according to routes. I have to request that you will furnish me the information above referred to with as little delay as practicable. This is necessary in order that I may be furnished with the information previous to entering upon the duties assigned me. It is expected that I will leave for that purpose as early as tomorrow morning. I have also to request that I may be informed of the names of the officers designated to furnish the supplies required with their residences or stations.” In fine condition.