Friederike Klaber was married to Leo Wreschner, who had died in 1937. The couple had two children. In 1935 the family came from Frankfurt am Main to the Netherlands.
During the war Friederike Klaber was possibly part of a group of Hungarian Jews, that was sent from Westerbork to Ravensbrück. There she died. Her children survived the war.
Mahn- und Gedenkstaette Ravensbrück