I made up my mind that Muscat Ramble was almost certainly the original name of the tune. My reasoning is that it is not likely that Kid Ory or Ray Gilbert had ever seen a muskrat, and it's even less likely that they or anyone else has ever seen a muskrat doing anything that we would be likely to think of as rambling.
I've decided Muscat Ramble was the original name of the tune. My reasoning is it's not likely that Kid Ory or Ray Gilbert had ever seen a muskrator.