Hi Craig.
I have tried researching a bit more about Alex, but, could find nothing new, still trying...I did however try his earlier history in Scotland, should explain I was born in Glasgow, but my father was from Rhos, so I am connected to both areas, and I remember seeing Alex many times.
I have a friend in Glasgow, Bob Bain, who runs the site for the old Empire theatre, and has a vast knowledge and collection of material on past entertainers, when I asked about Alex, he said he had visited the local theatres a few years ago, and had been in touch with his granddaughter, also that he was a good friend of the late Billy Crocket who worked with Alex for many years, when Billy died he gave Bob photos and videos of them both. Bob is recovering from an operation, but, will let me know what he has, soon as he can, so here's hoping.