It looks like he is saying...”ON Your knees BOY!”
“Yassuh MASSA! Mammy!”
https://live.staticflickr.com/8437/8010382525_4493656e34_b.jpg
Hitlery memorializing Byrd:
https://www.youtube.com/watch?v=ryweuBVJMEA&list=FLzW8_HbkPUZEpQ6k0dFXFuA&index=135