After the Potsdam Conference the Americans offered the family safe passage from the Soviet Zone of Occupation to their headquarters in Frankfurt-am-Main , where Gerhard Röhl became an interpreter and later the headmaster of the Helmholtz-Gymnasium , a large grammar school for boys . Freda Röhl returned to England with her two daughters in December 1945 ; John Röhl was sent under the auspices of the Red Cross to an international children 's home in Adelboden , Switzerland . He was reunited with his mother and sisters in Manchester in December 1946
Potsdam Conference
Potsdam Conference
John C. G. Röhl