Who is Frank Mitchell?

Frank Mitchell made this Rokkaku in Feb 2006. His other Rokkaku of a popular cartoon character can be seen flying during our One Sky One World fly in Sheboygan: https://www.youtube.com/watch?v=P2zRO7C-avY&t=1s. I'm curious who Frank Mitchell is, as I always appreciate knowing the history of who's behind the signature on the kite!

Видео Who is Frank Mitchell? канала Kite Flying and Kite Festivals