From The Comics Journal 78, December 1983

On "The Outbursts of Everett True"

"Beginning near the turn of the century, The Outbursts of Everett True... features the exploits of a portly, middle-aged gentleman who seems to have originated the contemporary battle cry usually attributed to Network's Howard Beale: 'I'm mad as hell and I'm not going to take it any more!'"

[Not sure if he's being serious here. I couldn't find anything that indicated this was true.]