I read the following old posting by Bill in Alabama. "I learned the style from a fine gentleman known as Uncle Arthur Kuykendall, who used a "drop-thumb" style in which he used his thumb on all strings rather than just the fifth." I remember Mr. Kuyendall's name when I was living in Huntsville. I think he also taught one the banjoi picker's in the Kingston Trio? Jim Conners? This was several years ago.. e must have been a great banjo picker, his name continues on over the South.