These WWII nurses in gas masks look like retro-futuristic superheroes

Pictured here: members of the U.S. Army Nurse Corps advance through a cloud of smoke during a gas mask drill, ca. 1942. The masks, combined with the nurse's uniforms, look like something out of a 1940s comic book. These are the ladies we want saving us from peril. More at Retronaut and Adventures in Geneology.