i just wanted to call attention to some incredible film clips of old masters in their younger days.
See them at http://www.online-museum-of-checkers-history.com/
Many players in upper age brackets will recall encounters with some of these masters in their later years.
When I was much younger, and they were older, I played Ryan, Grover, and Banks when they gave exhibitions in Detroit. I played two friendly games with Long at his home in Toledo. I played Ricca at the NY Chess and Checker Club in Times Square.
At those times, I had no appreciation whatsoever of the honor, privilege, and opportunity I was given to be in their presence. My, what memories old films trigger.