Sorry Dolly I have no answers for this one.
Census gives two families of Golightly, one at 44 Plessey Road, Blyth and the other 8 Rosamund Place, Blyth. Both head males of the families (I assume related) were Coal Trimmers.
Rosamund Place is set within the grounds of and along part of the old northern most Rope Walk. It was originally Newsham Street which connected with Folly Road, Stanley Street South and Horton Street.
March 1970 phonebook has a Golightly living on Cypress Crescent, but no mentions of other Golightlys, though no doubt there would have been others, surely?
The census is obviously pre 50s and 60s, and the phonebook is after. Maybe someone with a business directory could tell us more.
Golightly is a surviving surname in the town.
I shall be interested to see what other info comes to light. I shall also ask my dwindling crew of Blyth Moles and Informants. One of them passed away earlier this month.

P