Apollo Cinema

Hi I would like to ask for your help please ? I am in search of the manager/ projectionist name who worked at the Forum cinema in 1944/45 . Possibly going by the name Upton ? We are led to believe that he had a son called Mike Upton . Who would now be mid 80’s ?? if anybody know his son ? I would be so grateful if you could help me . Or can advise the best way possible to retrieve this information some how .. Thankyou for reading …