John Thamm

John Thamm. Sound Department: Prelude (to Chadora). John Thamm was born on 21 October 1937 in Wendell, Idaho, USA. He is known for Prelude (to Chadora) (2008), Bob Ross: Happy Accidents, Betrayal & Greed (2021) and The Joy of Painting (1983). He is married to Kathy Larsen. They have two children.