Accompanied by her husband, Jean—a member of the Piccard family of balloonists and the twin brother of Auguste Piccard—she reached a height of  during a record-breaking flight over Lake Erie on October 23, 1934, retaining control of the balloon for the entire flight.
Accompanied by her husband, Jean—a member of the illustrious Piccard family of balloonists and the twin brother of Auguste Piccard—she reached an extraordinary altitude during a record-breaking flight over Lake Erie on October 23, 1934, expertly guiding the balloon throughout the entire journey.