1. http://gw.geneanet.org/nicolefrancon?lang=fr;p=jean+alexis;n=vissac
2. http://gw.geneanet.org/nicolefrancon?lang=fr;p=jean+alexis;n=vissac
3. 4E140art21
4. http://gw.geneanet.org/nicolefrancon?lang=fr;p=jean+alexis;n=vissac
5. Registres matricules des classes
6. 4 E 110 art2