Lieutenant Donald W. Kerr was a fighter pilot in the US Army's 14th Air Force. On Feb 11, 1944, he took part in an air raid on Hong Kong, flying a P-40 fighter plane. His plane was shot down over Kowloon, but he managed to parachute safely to ground, and hide himself before the Japanese soldiers reached the area.
Later he was found by members of the East River Column, local guerillas fighting the Japanese. They brought him to safety, traveling across the New Territories, into southern China, and finally delivering him to the BAAG.