A passionate outdoorswoman, a “rugged individualist,” and a bit of an enigma—the few traces Dr. Andersen left behind give us glimpses into who she was. In this episode, we track down people determined to stitch together her life. Our associate producer, Sophie McNulty, rummages through the basement of Dr. Andersen’s colleague for clues about the elusive pathologist. Meanwhile, in Manhattan, pediatric intensivist Scott Baird suggests we take a second look at the conventional wisdom surrounding the evolution of cystic fibrosis research in the 1950s.