Rick van Vliet shared a 1946 letter his father received from Frank Zercher, the father of Sgt. Robert W. Zercher of York, PA; a downed American WWII airman who was aided by the Dutch Resistance. Rick’s father, Willem F. van Vliet, was a member of the Dutch Resistance, which aided downed Allied airmen by keeping them out of harms way in Holland; not easy, as Dutch civilians were being subjected to the terror of forced labor by the German military.