Found another of my Astros coaches whilst digging last night. This one comes from an Amazon listing.
Cluck toiled in the minors from 1967 to 1974, spending his final three seasons at the AAA level, but never making the show. He'd spend some time managing in the minors with the Dubuque Packers (75-76) and the Las Vegas Stars (84-85) before becoming Houston's pitching coach under Art Howe from 1990-1993 and later with Oakland (96-98) and Detroit (03-05).