Humor . . . in the post-WWII era

I heard a funny parlay between Bob Hope and Irving Berlin The two men had flown to Europe to entertain the airmen . . . the joke went something like this:
Hope: Welcome to Berlin, uh . . . Mr. Berlin.
Berlin: Oh, my name’s not Berlin Bob, it’s Jones.
Hope: Why’s that?
Berlin: I changed it.
Hope: Well, why's that?
Berlin: It seems to me a safer name.
Hope: Ehh, go on . . .
Berlin: Well, it seems that anything with the name Berlin runs the risk of getting subdivided.

(Ok, my rendition of this conversation lacks the fluidity and timing of the two masters, but I’ve done something for remembrance).