New Unidentified Episode
From The Lost Media Wiki
I found an episode of the show on archive.org linked here https://archive.org/details/dumbo-1 The episode seems to not otherwise be found, but I'm not sure what episode it is. The episode is Dumbo telling some kid at the circus the story of how the whole group came together. I checked with episodes that had titles that sounded like they could have been what this episode was, but they didn't match. The lost episode titles I think it could be are If I Ran The Circus Help Wanted The Gang's All Here Think of All The Times Feel free to add it in to which episode you think it is. There's too many possibilities for me to feel comfortable placing it myself honestly.