No, Cambrian I was not a member of the St.Trillo Trio. The group I played in in the sixties was the standard 4 man line-up, consisting of lead, rhythm and bass guitars and me on drums. We were known as "The Publicans", and played all the local venues (Winter Gardens, Paynes, Colwyn Bay Pier etc., and in dance halls, village halls and pubs over the North Wales area in the 60's. I left when I got married and the group became known as the "Atlantic Sound" later.
I have many happy memories of those days, there were lots of groups about then in this area, the "Anglesey Strangers", "Cossacks", "Aristocrats" "The Jets" etc and I can also remember a local band called the "Motown Sect" which featured a certain Lemmy, later to form "Hawkwind" ("Silver machine") and then "Motorhead" being part of the local musical scene.