Jean BERTRAND
http://www.bddm.org/liv/details.php?id=I.291.#BERTRAND https://geneafrance.com/france/mplf/?mplf=52380 https://geneafrance.com/france/mplf/?mplf=1776410
https://totenbuch.buchenwald.de/names/details/person/24727/ref/recherche