Originally Posted by a massive zebra
There was a brief book on the history of German cricket written by James Coldham in 1983 that you might find of interest. Do a google search.
The above was ltd to just 125 signed No. copies, so may be a little expensive.
The only other one I know of is Die Welt des crickets: edited by Brian Fell.
Don't think the Hitler story is true tbh, but could be wrong