found: NUCMC data from Mahoning Valley Historical Society for Ravenna Arsenal collection, 1954-1995(Ravenna Arsenal; Ravenna Army Ammunition Plant; originally operated by Atlas Powder Company under government contract until 1952 when it became contractor operated under Ravenna Arsenal, Inc., a subsidiary of Firestone Tire; in 1940s part of facility also operated by Silas Mason Co., of New York; mailing address: Apco, Ohio; [in Ravenna])
found: Ravenna, Ohio WWW Home Page, May 14, 1998(Ravenna Arsenal; Ravenna Ammunition Plant blt. 1939 in NE Ohio; a great supplier of ammunition during WWII; closed after the war; in 1952 government operations transferred to Ravenna Ammunitions Plant Inc.; currently non-operational)
found: Building the Ravenna Ordnance Plant, c1941