The Boys in the Boat: Nine Americans and their Epic Quest for Gold at the 1936 Olympics by Daniel James Brown. Trace the story of an American rowing team from the University of Washington that defeated elite rivals at Hitler's 1936 Berlin Olympics.
Disney is very clever. This is a huge plot twist. Also Elsa and Anna's parents did not die right away they floated to an island were Elsa and Anna's pregnant mom had tarsan and was eaten by the jaguar (For the Disney fandom)