A "chevalier de la Légion d'honneur", he was the illegitimate son of Philippe Le Bas. Originally known as Léon Grujon (Grujon was his mother's family name), he legally changed his name to Léon Grujon Le Bas on 25 June 1860. Bachelin-Deflorenne, Antoine (1866). État présent de la noblesse française (in French). Paris: Bachelin-Deflorenne. col. 1169.