Here is some information regarding Slough that was lost on 30 June, from this thread:
"There are a number of reasons for the phenomenal growth of the town, perhaps, the most important originated from the ending of the First World War, and the Depression which followed. At the end of that war, Slough was chosen, by the Government, to be the location for the storage of the huge quantity of motor vehicles and machinery brought back from France. As a result, these unwanted stores, were used as a basis for developing light industry on 600 acres of land in the area. Within a quarter of a century the 'Dump' became an important Trading Estate, bringing many workers from all parts of the country, consequently the small country town became a Borough and acquired the right to have its own Member of Parliament."
Sorry, I've misplaced the source/reference for this.
Cheers
