TheCodeBreakers
Hans Rohrbach, a 37-year-old
mathematician who later became editor of the oldest mathematical
journal in the world, the Journal of Pure and Applied Mathematics.
For several years, Pers z had been situated on the top floor of the
library building just behind the Foreign Office main building in Berlin's
Wilhelmstrasse. But by early 1940, it had burst out of these quarters.
The mathematicians moved out first, into several flats in an apartment
house at w-8 Jaegerstrasse that had been entirely taken over by the
Foreign Office. Their departure relieved the crowding in the original office
only temporarily, and soon the linguistic codesolvers found new offices,
first in an anthropological museum, where they were surrounded by
artifacts from Siam, and then in Dahlem, a suburb of Berlin. Here some
worked in a garden apartment on a street called ImDol, some in a nearby
girls' boarding school, where they were joined in 1943 by the
mathematicians
annaabi.ee 
