found: Plimpton, G. Mad ducks ... 1973
found: Wikipedia, Oct. 24, 2008(Alex Karras; b. Alexander George Karras, July 15, 1935, Gary, Ind.; nicknamed "The Mad Duck"; former football player, professional wrestler, and actor)
found: New York times WWW site, Oct. 10, 2012(Alex Karras; b. Alexander George Karras, July 15, 1935, Gary, Ind.; d. Wednesday [Oct. 10, 2012], Los Angeles, aged 77; fierce and relentless All-Pro lineman for the Detroit Lions whose irrepressible character placed him frequently at odds with football's authorities but led to a second career as an actor on television and in the movies)
found: IMDb, January 25, 2022:(Alex Karras; actor, producer, soundtrack; Played football for the University of Iowa Hawkeyes)