American military officer (1784–1869) who served in the War of 1812, Mexican-American War, and Civil War. Civil War–dated ALS signed “John E. Wool, Major General,” two pages on two adjoining sheets, 5 x 8, February 3, 1864. Letter to General George McClellan’s wife, Ellen. In part: “Herewith you will receive my autograph and photograph. I have not the vanity, however, to believe that your appreciation of either will be realized at the Sanitary Fair. Yet if loyalty and devotion to country for more than fifty years, with unceasing efforts with others to prevent its ruin and destruction, which have subjected me to many sleepless nights, would make it of value, it might claim a place in the interesting volume you are preparing for the Fair.” Wool signs again beneath a postscript, “John E. Wool, M. G.” In fine condition. RR Auction COA.