Jacob Zilverberg was a son of Levie Zilverberg and Jetje Vos. He was married to Roosje Peereboom from Amsterdam and they had five children together. One daughter has survived the Holocaust but the other four, Levie, Jetje, Cato and Louis have been killed in the Shoah.
City Archive of Amsterdam, archive card of Cato Zilverberg, Drents Archief, death certificates of Louis, Jetje, Cato en Levie Zilverberg.