Hello
On Gallica I found the info about their naturalisation in 1938 :
Michel KIERDAL (a nurse) born on 15/10/1907 in Luchow (Pologne) and his wife Pauline DUDEK born on 10/29/1904 in Ciszyca-Gorna
They were living in Bordeaux at that time
http://gallica.bnf.fr/ark:/12148/bpt6k6551816q/f10.image.r=d...Nathalie from France