Paul,
Yes and there is, but this was a long while ago when members of the family were still connected with the firm. They aren't any more. Some of the family live in Hull. They still have copies of some of the printers' blocks and somewhere I have copies of their apprenticeship indentures.

W&C were William and Charles, the sons of the famous John. John's younger brother, William, was the Hull printer. Their father, William, started out in Bridlington having I think been apprenticed in York c1790. John was apprenticed to his father along with the celebrated engraver Benjamin Fawcett.

Okay, Jim, neither of us can irrefutably prove one way or the other. I know what I know and you know what you know. Pax!