Mildred Fish-Harnack and her husband Arvid Harnack. They are the coolest of the cats and I am in love with both of them!! They attended my own school, University of Wisconsin-Madison, moved to Germany in 1929, and promptly allied with the Soviets, becoming leaders of an underground Nazi resistance group called the Red Orchestra. Mildred was the only American woman ever to be executed on the direct orders of Hitler.