Naatje Keyl was the widow of Jacob Fresco (1876-1936). The couple had three children. Their son died at a young age. The other two children survived the war.
Addition of a visitor of the website
A Jokos file (number 37951) on this person can be found at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.