It might seem remarkable that she recognized the find for what it was: Dugout canoes, the world’s oldest boat type found to date, are simply hollowed-out logs. In 2018, however, Thomsen had teamed up with Sissel Schroeder, an archaeologist with the University of Wisconsin-Madison, to help an undergraduate student catalog Wisconsin’s extant dugout canoes. When the project began, historians believed 11 existed in collections across the state. Less than a year later, after scouring private collections, supper clubs, local museums and more, the team had counted 34.