J.R. Richard, power pitcher for 1970s Houston Astros, dies - Los Angeles Times
J.R. Richard: Houston Astros All-Star pitcher passes away at age 71
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J.R. Richard, power pitcher for Astros in '70s, dies at 71
Topps in 1972, Part 1 – SABR's Baseball Cards Research Committee
Astros hall of famer and Louisiana native J.R. Richard dies at 71
Astros time capsule: the 1970s. A time of transition and a springboard for better times ahead., by MLB.com/blogs