According to tradition Nico Keizer worked during the war for several months for the 'Stalen Meubelen fabriek Galvanitas' in Geertruidenberg. At times he worked in the office and sometimes he walked around in the factory. He had a robust stature. One day he told he 'would be absent for several days'…
In addition, a Jokos file (number 50972) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.