Videos. Dempsey, Brennan, Sam Langford, & Harry Greb.

http://www.youtube.com/watch?v=WwyI-XikoEc





http://www.youtube.com/watch?v=Q2jtZ31rOlQ


http://www.youtube.com/watch?v=HMA6Pd6tT3Q
http://www.youtube.com/watch?v=jmaPxa-eZss

Wrong section my friend. ;) You can also see Harry Greb shadow boxing, and training, along with the Gibbon's brothers sparring and many other famous old timers on Youtube.