Joseph K. F. Mansfield, Brigadier General of the U.S. Army by John Mead Gould

The following map is based upon one issued November, 1894, by the "Antietam Board." This in turn was based upon the so-called "Michler" map from the office of the U. S. Engineers, which, while correct in the main, has many errors of detail, and it is not likely that all of them have yet been discovered by the Board. Indeed, one object of the Board in issuing the map, was to invite criticism and corrections from the soldiers and others.

The positions of the troops cannot be shown with anything like accuracy and clearness on so small a map, and are omitted excepting a few needed to illustrate the narrative, but it may be said in a general way, that just before Gen. Mansfield was wounded, the Union forces, under Hooker, were pushed out of "the great cornfield" and the East Woods. The 12th Corps, (Mansfield's), with some help from the remnants of the 1st Corps (Hooker's), stopped the advance of the Confederates under Hood, and in turn drove them back to West Woods.