The top post is the original by Leslie Illingworth from Wales. His work always had mood and drama - lots of heavy dark areas with sinister elements creeping up. The artist who borrowed from him was found on a WWII cartoon website as were the others. The Illingworth pice is from a book titled "World War II in Cartoons" by Mark Bryant, published 1989, Gallery books. This book led me to Arthur Szyk.