Borrah Minevitch + His Harmonica Rascals

The scene in the park with Jimmy Stewart and Jean Arthur, there is a chubby fella, who I think is part of a troupe with Borrah Minevitch & His Harmonica Rascals in a remarkable film from a few years later, which shows up on TCM from time to time, and can be found on YouTube too. They may belong in the listings for this show.