Salomon Jacobs and Betje Goldsteen were married in 1928. They had three children, one of whom only lived for a couple of weeks. The Jacobs family was the only Jewish family in Laag-Keppel and was completly assimilated into the non-Jewish village. When Salomon was picked up, Betje and the children went to live in the Jewish community of the "kibbuts" Laag-Keppel.
H.E. Dominicus, Mauthausen. Een gedenkboek (Amsterdam, 1995)
In addition, a Jokos file (number 20229) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.