Terrier - I believe it was John Booth, i.e. George Formby Senior, who did the surname change from Booth to Formby. When he died comparatively young from TB, his son Hoy Booth took over the act to earn money for the family. If you look at photos of the older and younger Formbys, you'll see the style. As for the music, you'd be hard pressed to tell the difference between the later George Senior and the young George Junior! It was only when Beryl came along that GF became the entertainer we know now. :-)