Jumbo the Elephant has a Drink and Goes to the Opera

There was a real Jumbo (original name, Mumbo Jumbo) who passed away in 1885.  Later, Jumbo became Dumbo, a slur created by Disney.  Elephants aren't dumb.  This Jumbo represented thread from the Clark's O.N.T. Thread Company.  I don't believe Jumbo was paid for his endorsement.  Kerr's thread company borrowed the Pachyderm as well.