When Major-General Graham assumed command of the Second Army Corps and organized it into divisions, the battalion was placed in the provisional division. In June (exact date not remembered) the battalion was placed in the Second Brigade, Second Division, being brigaded with the Twelfth Pennsylvania and Seventh Illinois Regiments. The battalion was relieved from the Second Brigade, Second Division and placed in the Second Brigade, First Division, being brigaded with the Eighth Ohio and Sixth Massachusetts. A New Jersey regiment was relieved from duty as corps headquarters' guard late in June and the Ninth Battalion assigned to that duty. The battalion performed this duty until it was ordered South from Camp Meade, Penn., when it became separated from corps headquarters. Important outposts, such as the entrance to Falls Church and the guarding of the citizens' gardens and property, were under the charge of the command. When General Garretson's brigade (Second Brigade, First Division, consisting of the Eighth Ohio, Ninth Battalion and Sixth Massachusetts) was ordered to Cuba, General Graham, thinking that his entire Army Corps would soon be ordered to active service, requested the War Department, as the battalion was his headquarters guard, to let the battalion remain with him. (See telegrams Gen. Graham's report to the Secretary of War.) General Graham's request being honored by the department, the battalion was deprived of this chance of seeing active service in foreign fields. The battalion was then attached to the Second Brigade, Second Division, under Brigadier-General Plummer, being brigaded with the First New Jersey, Sixty-fifth New York and Seventh Ohio. In July the battalion was relieved from this brigade and attached directly to corps headquarters. When the Second Army Corps was ordered to Camp Meade, Penna., the battalion was one of the first to break camp, going with corps headquarters. The battalion left Camp R.A. Alger August 15, 1898, and arrived in camp at Camp George G. Meade, near Middletown, Penna., August 16, 1898. In camp the battalion occupied a position with the signal and engineer corps and hospital, near corps headquarters. When the Peace Jubilee was held in Philadelphia, the battalion was one of the representative commands from the Second Army Corps, being given the place of honor in the corps in the parade, following immediately General Graham and staff. When the corps was ordered South the battalion was assigned to the Second Brigade under Brigadier-General Ames. The battalion left Camp Meade November 17. Up to this time it had done the guard duty of corps headquarters and was complimented for its efficient work by the commanding general. The battalion arrived in Summerville, S.C., November 21, 1898. It was brigaded with the Fourteenth Pennsylvania and Third Connecticut.