The grandfather was said to have toured “almost in the stagecoach days.” If the grandfather was born in 1891, even at fifteen that puts him in 1906. A quick web search finds motor omnibuses on the streets of London in 1902. I'm afraid I'll have to give you the benefit of the doubt.
But with your poor taste in music though; you are still a piece of work.
You don’t get it. The article said they played the place when the drummer was 80. Poor writing.