In 1903 Delmenhorst was declared "kreisfrei", meaning it was under its own regentship, not having to obey any other county. In the 1930s Great Depression the "Nordwolle" went bankrupt - nevertheless the town grew bigger, incorporating several smaller villages around it. On Kristallnacht in November 1938 the synagogue was burnt down by the Nazis, who had come to power in Germany in 1933. After the Second World War, Delmenhorst was in the British zone of occupation and had to deal with thousands of refugees from Eastern Germany, which now was occupied by the Soviet Union. The British-appointed mayor during the British Occupation was Major Jack Wolfe, an inspector of the British Constabulary. In 1950, more than 57,000 people lived in Delmenhorst.