Hi Bev I have heard from another lister that the Tivoli Theatre was in Albert St opposite the city hall. He remembers the roof garden and that the theatre closed in 1965. I remember going there in the 1950s-1960s with my boyfriend who became my husband. I have confirmed with my husband that the Tivoli movie theatre had a roof garden where you could also watch movies. I would suggest that this is the place where your grandfather worked. The other Tivoli Theatre Restaurant only came into existence about 1990. Regards Pam in Brisbane