You should be able to see the relatives that I entered into WikiTree. Giulio (my grandfather) had a daughter, Elsie; a son Giulio, who you remember; plus other children, including my mother. Giulio (senior) was married three times. You can't see my mother's name on WikiTree because she's still living and I kept her info private.
I'll have to tell my mother, to see what else she remembers. Keep in mind that my mother left Scotland in 1958. Maybe my mother and your mother never met?
The fish and chips place may have also sold ice cream, I don't know. But they had an ice cream place in Belfast (Tog's Ices) before moving to Scotland.