David Lens, brother of Simon Lens and both unmarried sons of Elkan Lens and Flora Kosman, was working as a waiter, just as his brother. They both lived at home with their parents in the Bierstraat 30a in Den Haag. Besides his brother Simon, David had also his sibs Salomon, Jozef en Israel. They were married and were killed with their families during the Shoah, just as Simon, his parents and David …