Vocation : Travel : Aviation field

David McCoy (August 24, 1915 – February 8, 2020) was an American skier and businessman who founded the Mammoth Mountain Ski Area in 1942.

Stanisław Wigura (9 April 1901 – 11 September 1932) was a Polish aircraft designer and aviator, co-founder of the RWD aircraft construction team and lecturer at the Warsaw University of Technology. Along with Franciszek Żwirko, he won the international air contest Challenge 1932.

Léon Alfred Nicolas Valentin (22 March 1919, Épinal (Vosges), France - 21 May 1956, Liverpool, England) was a French adventurer, who attempted to achieve human flight using bird-like wings. Léo Valentin is widely considered to be the most famous "birdman" of all time. He was billed as "Valentin, the Most Daring Man in the World".