When the Colt .45s became the Astros and the origins of other Houston sports team names
A Tale of Two Infields Pits Strength Against Strength - The New York Times
Vintage Houston Colt 45s Jersey M Cooperstown Astros Shirt MLB
Colt .45's AstrosTalk
Twins aren't playing Astros in Cocoa any more, Dorothy
What does Houston Astros stand for?
Today In 1964: The Houston Colt .45s - Baseball by BSmile
Colt 45's Baseball
Astros drop Game 2 of Braves Series, 6-4 - The Crawfish Boxes
Sanity has Won: Astros keep the pistol of the Colt .45s uniform. : r/ baseball
Houston Astros Trademarks
MLB Jersey & Cap History
Champs: Astros' first World Series win is a triumph for Houston
Houston Astros 'Likely' To Change Uniforms. Again.