| Sunday, August 16th, 1959 | Placed 3B Isaac Ward on the 15-day disabled list. | Tuesday, July 21st, 1959 | Activated CF Tommy States from the disabled list. | Monday, June 15th, 1959 | Released SP Jay Ward. | Received 3B Mauro Santos from Double A Port Lavaca. | Drafted CF Claudio Calpán in the 1959 first-year player draft (Round 6, Pick 16, 103rd overall pick). | Drafted MR Chris Bennett in the 1959 first-year player draft (Round 7, Pick 16, 119th overall pick). | Drafted LF Eugene Snyder in the 1959 first-year player draft (Round 8, Pick 16, 135th overall pick). | Drafted SP Rick White in the 1959 first-year player draft (Round 9, Pick 16, 151st overall pick). | Drafted RF Ramón Medina in the 1959 first-year player draft (Round 10, Pick 16, 167th overall pick). | Saturday, June 13th, 1959 | Placed MR Geoffrey Patrick on the 15-day disabled list. | Monday, May 25th, 1959 | Placed C José García on the 15-day disabled list. | Friday, May 8th, 1959 | Placed SP Wen Ying on the 15-day disabled list. | Thursday, March 26th, 1959 | Activated SP Eric Clark from the disabled list. | Friday, September 19th, 1958 | Released 2B Eric Owens. | |
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