Michael Simmons, editor of the wonderful Fretboard Journal magazine says:
Since Boing Boing has become something of a clearing house for all sorts of hobo goodness, I was wondering if you knew about this new CD of Nat Wills' Tramp comedy routines that date back to 1909? The label's site includes some sound clips.
The Internet Archive has a bunch of free Nat M. Wills recordings, too.