Bernard Gerhard and Annette Stibbe married on 31 March 1909 in Amsterdam. They had a child.
Stadsarchief Amsterdam, archiefkaart Bernard Gerhard Stibbe
In addition, a Jokos file (number 17942) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.