With a mission to protect citizens at home and abroad, the Ohio National Guard was originally established as the Northwest
Territory Militia in Marietta on July 25, 1788 and has fought
in every war since the War of 1812. Built in 1914, this Ohio National Guard Armory served both as Regimental and Company
B, 7th Infantry, O.N.G. Headquarters. Later Company. A, 166th Infantry, 37th Division, occupied the dual-purpose armory.
The armory served Washington County as a departure point for
soldiers leaving for service in World War I, World War II, and
Korea. The armory also served the area in times of crisis and
celebration, often used by the Red Cross, Marietta College, and other civic groups.