The July 9 1926 edition of the Toronto Daily Star contained this photograph of a man who was simultaneously a British baronet and a member of a theatre company playing on Broadway:
Wikipedia has an entry for Sir William Dunn, who was the 1st Baronet of Clitheroe and a former Lord Mayor of London. The page mentions that his son, Sir John Henry, had been located working in a coal mine near Barnsley. I don’t know whether this was before or after he was in the Revue Company.
Searches for John Henry Dunn didn’t turn up anything else, as there was at least one other, more notable, person with that name.