Lt. Beulah “Peggy” Greenwalt was a general duty nurse stationed at Sternberg Hospital in the Philippines when the Japanese began bombing on 8 December 1941. Along with her fellow nurses, she found herself practicing combat medicine in a war zone. When Manila fell, Lt. Greenwalt retreated with the American and Filipino troops to the Bataan peninsula. The nurses worked in what would come to be known as Jungle Hospital #1 and #2, then moved on to the Malinta Tunnel on Corregidor Island. Greenwalt had a camera and snapped some amazing photos of the journey ashore and the destruction of Corregidor. When General Wainwright surrendered on 6 May 1942, Major Frank Kriwanek handed Lt. Greenwalt the 12th Quartermaster (PS) Regimental Colors and asked that she keep it safe. During her nearly three-year ordeal at the Santo Tomas Internment Camp, she was able to keep the hidden camera and film, as well as the flag, safe from her captors. Eventually, all 77 nurses were liberated. After they were released from imprisonment and returned to the States, Nurse Greenwalt presented the flag back to Frank Kriwanek at a meeting of the American Legion in St. Louis in October 1945.