[1] Émile-Dostaler O'Leary O'Leary was born in Berthierville, Quebec and attended the Collège Saint-Joseph in Berthierville before travelling to Belgium to study at the Petit Séminaire de Basse-Wavre and, later, the University of Burgundy (Dijon, France) and Université Libre de Bruxelles.
degree in chemistry, physics, and mathematics at the Institut de chimie Meurice.
He worked at La Patrie until 1957, when he became director of Air France's Department of External Relations—a position he held until 1958.
[1] During the Canadian federal election of 1945, he stood as a candidate for the Bloc Populaire Canadien in the Laurier riding.
[2] O'Leary was a representative to the executive of the International Federation of Journalists[1] and, in 1950, founded the International Francophone Press Union (French: Union internationale de la presse francophone, UPF).