The Telegraph, London says:
The couple possibly went south to marry because parental consent was not forthcoming, since Emma was under age. But by the time of the 1851 census any family rift appears to have been healed, since Margaret Laverick, Emma’s mother, was living with the young couple to help look after their one-year-old daughter, Mary, while Emma expected her second child, George.

William was a successful draper and employed five staff in his shop as well as a live-in house servant. George eventually followed him into the family business.