Emile Grimshaw was a performer, certainly during he '20's & '30s, on the banjo in the style now known as Classic Banjo. He had a Banjo Quartet and made recordings with it as The Emile Grimshaw Banjo Quartet. One recording that I know of is "Whistling Rufus" with what would today be regarded as racist, vocal in the minstrel style. Nice tune and one I'am fond of playing. He was in the London phone dirctory in the early 1980's but I would imagine that he is deceased. You could search in Google under John Alvey Turner (Stringed Instrument (makers/repairers/shop)and they might be able to give you more info. Grimshaw banjos, especially pre-world war II models, are highly regaded by Trad Jazz players.