Found some early pics from filming....
HERE
I remember hearing about how Hoover supposedly had Dillinger's cash and prizes in a jar on his desk, and that rumor coupled with that tent he was pitching in the morgue led to the urban legend living on.
The fact that Hoover was, um...well, you know....the kind of guy who wore women's underwear when not tracking down ..ahem...hardened criminals didn't diminish the rumor, that's for sure.