THE 91ST INFANTRY DIVISION was officially reactivated at Camp White, Oregon on 15 August 1942. Actually Major General Charles H. Gerhardt had arrived at Camp White on 8 July 1942, and by 19 July most of the Division officers had reported for duty. Although in certain specialized arms the original cadre was selected from technical schools or commands, the majority came from the 1st Cavalry Division, stationed at Ft. Bliss, Texas. At the elaborate ceremony of reactivation on 15 August, 529 officers and 1279 enlisted men listened to the roll call of the dead and witnessed a moving ceremony of the presentation of colors. So the new 91st was born. Quickly all efforts were bent to building up the Division to numerical strength, and then to training the men for the battle-trials ahead.
Early in September occurred the famous 91-mile march, of which the original members of the Division still reminisce. Undertaken to instruct the cadre in marches and bivouacs and to test the best physical powers of the officers and men, the march of 91 miles was made through the rough roads and trails of the Cascade Mountains. The distance was covered in 28-3/4 hours of actual marching time.