I see "Uncle Josh" as an example at the UCSB page. Oh, the memories that brings back, of a small museum near a campus in South Dakota (where I was visiting), which had a cylinder player. I asked the nice ladies there if it worked, and they weren't sure, so I asked if I could try it, and they didn't see why not. I carefully loaded up a Sousa March, and it played all right, but I got impatient (geez, a whole two minutes…) and took it off and tried "Uncle Josh at the Bug House."
The first thing I noticed was that I had to keep a finger on the needle assembly, applying gentle pressure so it would advance and not play the same revolution over and over. Like the disk of "No News: Or, What Killed the Dog" that James Thurber wrote about, this had been played to death.
The second thing I noticed was that "Uncle Josh" (aka Cal Stewart) provided his own canned laughter, hooting annoyingly after almost every line he spoke. The joke of this piece was that U. Josh had spent a night or so at a rooming house run by a man named Bug. So it was the Bug House, see. The story from that point was a series of puns, or rather, the same demi-pun, over and over. "He seed the lightnin', Bug did! A-HEE-HEE-HEEEE! He took a tumble, Bug did! A-HEE-HEE-HEEEE!" And so on and on, for the full two minutes. Two long minutes. (As my friend Mike likes to say, when confronted by the alien behavior of our forebears, "It was a simpler, more natural time.") Humor-wise, he started to stink, Bug did. Hee.
Stewart's character was so popular he had books (I think they collected newspaper stories Stewart wrote in character), and short Edison movies (which can be found at the Library of Congress's "American Memory" page: brief tableaus of Josh seeing a ghost, and I don't know what else), in addition to the records. "U.J. at the Bug House" was so popular it had to be re-recorded. Presumably, the master wore out from pulling so many copies. The fictional "Punkin Center" locale lives on in some real towns named after it, like the one I used to see on Colorado maps, down near Limon and Karval.
I didn't know all this at the time. I was actually interrupted before I finished listening to the cylinder. My aunt came to get me, having finished some errand she was on, and I never got back to the museum, though I caught up with Uncle Josh a while back, finding a long playlist of sound files from his ancient hits at archive.org, which has a terrific collection of 78s in their sound recordings archive.