It was run by Alfonso Demarco and his wife Giacinta (ms Pelosi).
The business is listed in the Censimento of 1933:
Demarco, A.,
Shopkeeper,
Cross House, Carnoustie
Frosinone Province.
The Demarco clan hails from Picinisco.
Demarco’s Tearoom was located at the Cross Carnoustie, where the Spar is now. The premises were demolished to make way for a supermarket – initially The Challenge Supermarket and later Spar.
Can anyone help with more details?