Coenraad Boas was a son of Wolf Boas and Sientjen Logger. He married Klaartje van Emden in 1887 in Schiedam. She passed away in 1938.
Stadsarchief Amsterdam, archiefkaart Coenraad Boas
In addition, a Jokos file (number 16080) 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 1165 / 392).
This person is mentioned in a CABR document of the Dutch Nationaal Archief.