He was born at
Vierzon,
Cher department,
France. In his early years he was a tailor and a town clerk before becoming a journalist. Laudier was the editor of
Tocsin, a socialist weekly publication. He served the
General Counsel of
Bourges before becoming the
mayor of Bourges from 1919 to 1943. He was a member of the
French Section of the Workers' International (''Section Française de l'Internationale Ouvrière
) from 1919 to 1924. His book, Ce qu'est le parti socialiste'' was published in 1919 by SFIO's Librairie du parti socialiste. Laudier was a member of the
Chamber of Deputies (1919-1924). He was a
Senator of the
French Third Republic representing Cher elected in 1930 and reelected 1939, with his term ending upon his death in 1943. On 10 July 1940, he voted as a Senator in favour of granting the cabinet presided by Marshal
Philippe Pétain authority to draw up a new constitution, thereby effectively ending the
French Third Republic and establishing
Vichy France. He died in Bourges, Cher, France. ==References==