The Kohnke family had good contacts with the Frank family. In 1940 the couple had a child that survived the war by going into hiding.
Addition of a visitor of the website
For more information on the kohnke family, see the website Amherstdaily.com.
In addition, a Jokos file (number 55754) on this person is at the Amsterdam Municipal Archive. Access is subject to authorization from the Stichting Joods Maatschappelijk Werk.