No future Astros, only former Astros with birthdays today ~
LHP Mike Cosgrove (62)
A second round pick by the Astros in 1970, Cosgrove pitched in 119 games (20 starts) from 1972 to 1976 with a 12-11 record, a 4.03 ERA and a 1.515 WHIP.
IF Cody Ransom (37)
Originally drafted by the Giants in the ninth round in 1998, Ransom came to Houston in March 2006 from the Mariners. In 19 games for the Astros in 2007, he hit .229/.413/.371 before leaving via free agency that winter. On September 21, 2008, he recorded the final putout at the old Yankee Stadium. He most recently signed with the Padres as a free agent back in December.