Conversation so far:
Was Uncle Earl a nickname for Earl Long?
Uncle Earl is so-named because of Earl Long's relatives, including nephew and U.S. Senator Russell Long
How did Earl Long feel about the nickname Uncle Earl?
What is a popular Earl Long anecdote?
Earl Long's erratic political behavior led the aspiring singer Jay Chevalier to compose in 1959 the song, The Ballad of Earl K. Long.
Did Earl Long make any public statements regarding the song The Ballad of Earl K. Long?
Are there any anecdotes about Earl Long that relate to his family?

Question: Any other information relating to the nickname?
Self-contained rewrite: Any other information relating to the nickname 'Uncle Earl' for Earl Long besides being so because of his relatives, including newphew and U.S. Senator Russell Long?