The key to this may lie with the infamous Sir John Benjamin Stone. His old man Benjamin Stone must have had some reasonable share in a glass works near Lupin Street around 1851. When the chief owner retired Benjie saw his chance became the main man, and his son John went with in the offices. By 1861 John is shown as a glassmaker (master).
John would go on to far better money making concerns but his father, who died in 1882, was listed in the 1881 census as living in Sutton Street as a glass manufacturer employing 90 men, 5 women and 3 boys.