Person ? Jules Aron
- From 1903-01-01 to 1908-12-31, Administrateur of Le Nickel
- From 1908-01-01 to 1908-12-31, Administrateur of COMPAGNIE DU BOLEO
- From 1912-01-01 to 1912-12-31, Administrateur of COMPAGNIE DU BOLEO
- From 1912-01-01 to 1927-12-31, Administrateur of Le Nickel