On April 13, 1975 — The Astros retire Don Wilson’s number 40 posthumously in tribute to the right-hander, who was found dead of asphyxiation by carbon monoxide in the garage of his family’s home in January. The 29 year-old fireballer, the author of an 18 strikeout game that tied a major league record, spent nine seasons with Houston, compiling a record of 104-92 along with an ERA of 3.15.