Steve Kaufmann sensei studied with two masters of Aikido, who were original students of O Sensei, since the early 1970s. You can see Steve Kaufmann sensei at 1:10 being thrown by Yamada sensei. Also in this video are senseis Claude Berthiaume (hair & beard), Steve Pimsler ('fro) & Rick Stickles all as fellow students at the time.
