Louis and Karel Cahn (also written as Kahn) were two of three children of Jozef Cahn and Julia Anna Hirsch. The parental home stood at Daalhemerweg 8 in Valkenburg. They were a trading family. Karel Cahn was never married.
Addition of a visitor of the website
In addition, a Jokos file (number 54057) on this family is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.