Pierre Biétry was a French syndicalist and politician who initially followed orthodox socialism before pioneering the "Yellow socialist" movement of the early 20th century.
He was also the maternal grandfather of journalist and White House Press... Wikipedia
Born: May 9, 1872, Fêche-l'Église, France
Died: December 3, 1918 (age 46 years)
Organization founded: Fédération nationale des Jaunes de France