Jacob Spiero and Johanna Koppens married in 1910 in The Hague. They had three children: a child that survived the war, Estella and Barend Mordechai.
Haags Gemeentearchief, gezinskaart Jacob Spiero
In addition, a Jokos file (number 109) on this household is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.The Jokos file reveals that a claim was lodged for compensation for valuables surrendered to the Lippmann-Rosenthal looting bank (L-claim, number 11336/13702).