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Children: Debra Lee, Danna Lynn, David Blocker and Dirk Blocker. O'Donnell is located in the panhandle of West Texas, about 40 miles south of Lubbock, Texas. There is a museum located in O'Donnell dedicated to Mr. Blocker. Father of producer David Blocker & actor Dirk Blocker Father of identical twin daughters, Danna and Debra Interred at DeKalb Cemetery, DeKalb, Texas, USA. Started and owned the Bonanza steak house restaurant chain. The Long Goodbye is dedicated to him: "In Memoriam for Dan Blocker". Robert Altman, who had directed many early episodes of Bonanza, had originally cast his friend in the role of Roger Wade, but he died before filming commenced. The role subsequently was filled by Sterling Hayden. Attended and played football for Sul Ross State College, Alpine, Texas, graduating in 1950. All of his children studied karate under Chuck Norris. Blocker was approached to play Major "King" Kong in Stanley Kubrick's Dr. Strangelove or: How I Learned to Stop Worrying and Love the Bomb after Peter Sellers was injured. However, according to Terry Southern (co-writer), Blocker's agent rejected the script as being "too pinko". Became close friends with Robert Altman when Altman was directing episodes of the TV show Bonanza. Altman's Bonanza episodes often often featured the Hoss character and frequently were humorous. Altman wanted Blocker to play the Roger Wade character in his version of Raymond Chandler's The Long Goodbye, but he died before the commencement of shooting. The movie was dedicated to Blocker.