On Thursday, July 11, from 1 to 2:30 p.m., the Oklahoma Territorial Museum and Carnegie Library partner with OETA to hold a premiere screening of Back in Time: “The Three Guardsmen” at the Oklahoma Territorial Museum in Guthrie.” This episode of Back in Time tells the riveting tale of the lawless expanse of the “Twin Territories” and the three men who rose to the call of duty amidst the chaos. Hear the stories of lawmen Bill Tilghman (1854–1924), Henry “Heck”…