Camp McCall was an Army Base. It is reactivated when it is needed for training -- like Vietnam, Korea, etc. It was on the news during the last crisis too, so it is still being used on occasions. You may be able to locate information at Fort Bragg -- In their library, they may have the information. Fort Bragg is not very far from Camp McCall.
Camp McCall is located south of Southern Pines and Aberdeen.
I wish you success.