As a performer John Charles Thomas was an important figure - he spanned a lot of genres, and despite his operatic work, he continued to perform popular and folk music. We've had interesting discussions about him before.

It looks, from a cursory bit of research, that a one-woman campaign to usurp Thomas's life and name is underway. I'm astonished that IMDb changed the listing with so little research, just her say-so.

SRS