Second Lt. Sarah Allbright, a military police officer assigned to Headquarters and Headquarters Company, 91st Military Police Battalion, dressed as Dr. Mary E. Walker and provides a brief history of her achievements. Walker, from Oswego, was the first woman to receive the Medal of Honor for her work volunteering as a doctor on the battlefield during the Civil War. (Photo by Staff Sgt. Michael K. Selvage, 10th Sustainment Brigade Public Affairs NCO/Released)