Matches in DBpedia 2015-10 for { ?s ?p "William R. Lucas (born March 1, 1922) was the fourth Director of the NASA Marshall Space Flight Center. He served as director from June 15, 1974 to July 3, 1986 when he retired as a result of the Challenger tragedy."@en }
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- William_R._Lucas abstract "William R. Lucas (born March 1, 1922) was the fourth Director of the NASA Marshall Space Flight Center. He served as director from June 15, 1974 to July 3, 1986 when he retired as a result of the Challenger tragedy.".
- William_R._Lucas comment "William R. Lucas (born March 1, 1922) was the fourth Director of the NASA Marshall Space Flight Center. He served as director from June 15, 1974 to July 3, 1986 when he retired as a result of the Challenger tragedy.".