Astros and Twins are not exactly Twins, but… – ALL THINGS ASTROS
Houston Astros clinch third straight AL West title
Chicago Cubs - Wikipedia
Houston Astros history - 1980 season
Astros clinch the NL Central title
Houston Astros - Wikipedia
Houston Astros - Wikipedia
Big Days in Astros History - October 6, 1980 - Astros clinch first division title in club history
Mattress Mack Wins Big If Houston Astros Win the World Series
Angels pitchers struggle as Astros clinch AL West title - Los Angeles Times