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 spouse, Jean—a member of the distinguished Piccard family of aerostat pioneers and the twin brother of Auguste Piccard—she attained an impressive height during a groundbreaking flight over Lake Erie on October 23, 1934, skillfully controlling the balloon throughout the entire expedition.