RF Brad Snyder (30)
Originally drafted by Cleveland in the first round in 2003, Snyder signed with Houston as a free agent in the offseason in 2011 after playing with both the Cleveland and Chicago organizations. He is currently hitting .295/.391/.589 for Oklahoma City.
RHP Jarred Cosart (22)
Cosart was a 38th round draft pick by the Phillies in 2008, going in the lower rounds primarily because of signability issues. He came to Houston in July 2011 along with Jon Singleton, Josh Zeid and Domingo Santana in the Hunter Pence trade. In seven starts at Corpus Christi, Cosart is 3-2 with a 3.79 ERA and a 1.684 WHIP.
Former Astros with birthdays today ~
LHP Bob Knepper (58)
A second round draft pick by the Giants in 1972, Knepper came to Houston in December of 1980 as a part of the Giant's trade for Enos Cabell. He pitched for Houston from 1981 to 1989 with a 93-100 record, a 3.66 ERA and a 1.306 WHIP in 284 games (267 starts). His best season for the Astros was in 1986 when he went 17-12 with a 3.14 ERA and a 1.140 WHIP. He was an All Star for Houston in 1981 and 1988, and let the National League in shutouts in 1978 and 1986 (for the Giants and Astros, respectively).
SS Miguel Tejada (38 as far as I know)
Originally signed by Oakland out of the Dominican Republic in 1993, Tejada came to Houston in a December 2007 trade with the Orioles for Luke Scott, Dennis Sarfate, Matt Albers, Troy Patton and Mike Costanzo one day before being named in the Mitchell Report in connection with steroids. He played in 316 games for Houston in 2008 and 2009, hitting .298/.327/.435. He was an All Star six times, won the Silver Slugger two times, was American League MVP in 2002, among many other notable achievements during his career.