Barbara Yeager, nee Larssen (c 1912-c 1976) was married to American physicist Jens Larssen when the Race invaded. When Leo Szilard dispatched Larssen to Washington, DC to petition the government to continue funding their project to build an atomic bomb despite the tremendous resource constraints imposed by the invasion of the Race, Barbara met Sam Yeager in Chicago. She fled the city along with Yeager, Ullhass, and Ristin when it fell to the Race.