The Houston Astros have retired 9 numbers of former players
General Baseball Image Discussion - Page 44 - OOTP Developments Forums
Jersey Signed by Teammates to Cancer-Stricken Jim Umbricht at Auction
Astros Daily - Astros In The Sky - Deceased Players
Download File - Zack APBA Handbook
1963 Topps Jim Umbricht VG-EX Houston Colt .45s #99
Astrodome Memories
Batting 1.000. Really. - BallNine
Remembering the inaugural 1962 season
Jersey Signed by Teammates to Cancer-Stricken Jim Umbricht at Auction
1964 Topps Baseball Checklist, Set Info, Buying Guide, More
Houston Astros, Baseball Wiki