Jim has just contacted me regarding the above....
His family lived at No 4 The Alley, Gornal Wood and in either 1950 or 1951 the house was struck by this thunderbolt.
He remembers an article in the local newspaper (may have been the Express & Star or the Dudley Herald) showing a picture of his father with his hand sticking out of the massive hole in the roof.
He is desperate for a copy of that photo and has contacted both newspapers but no joy.
Does anyone remember it? Can anyone advise where else he can try?