After World War II Glonn was a refugee destination for those driven out of their homelands, those whose homes were bombed out and those who had been evacuated, and this new inflow of people eventually grew to become more than a third of the town's population. Many new houses had to be built, and in 1959 it became necessary to name the streets once the house numbering system in use up to the time was no longer useful for distinguishing addresses.