Senorita Lenore Riviero with Antony Jannus in Rex Smith aeroplane, Washington, D.C. 1911.
I actually found the source for this on Google. It’s from the May 27, 1911 edition of Town & Country. The woman is referred to as the “daughter of the Cuban minister.” There was an Antonio Martín Rivero who served as Cuban minister to the United States that year. Maybe it’s him. The woman’s legs are tied down so that her skirt wouldn’t fly up during the trip.