[1] Marin joined Free France from June 1940 when he was a correspondent for Havas agency [fr] in London for a year.
After the capture of Rennes, he was in charge of restarting Radio Brittany and was appointed director by General de Gaulle.
After a passage on the daily newspaper, Les Nouvelles du matin, he arrived at the AFP as general director.
Jean Marin, one of the artisans of the statute that gave its autonomy to the AFP (law of 10 January 1957), was elected president of the Agency in 1957.
He then left journalism to work in advertising, in Publicis, TVCS then Havas Marin was awarded the 1995 Prix Cazes for his novel Petit bois pour un grand feu, published by Fayard.