I may well have posted about my grandpa Ivor here already but as it would be locked even if I could find it, a quick summary and the reason I returned to the topic. Ivor was a professional guitarist and banjo player as a teenager, and the country's top session musician, jazz and classical, as well as a prolific composer and teacher for over 70 years. The reason I have come back to the topic is after hearing him accompany Winifred Atwell on the radio yesterday on one of her many hits (the first of two number ones in 1954), I finally found some video footage of him online after looking for ages, from a BBC programme last year with a clip from 1958.
I know a few people here have used his books to learn (they are still selling worldwide) and look up in the top corner and there he is. Poor People of Paris BBC