18 October 2011 Image Martha en Leo Ehrenfreund Gerrit Netten Share Facebook E-mail Martha and Leo Ehrenfreund with their grandson Leo in Amsterdam. Photographed in June 1939. With: Martha Ehrenfreund-Rosenstein, Leib Ehrenfreund, Peter Frank Hecht All rights reserved About Martha Ehrenfreund-Rosenstein, Leib Ehrenfreund, Peter Frank Hecht All rights reserved