| | | Saturday, July 25th, 1959 | | Placed SP Ben Sánchez on the 15-day disabled list. | | Monday, June 15th, 1959 | | Promoted SS Luis López to Double A Laredo. | | Received SS Raúl Cervantes from Double A Laredo. | | Promoted SS Raúl Cervantes to Double A Laredo. | | Received 2B Luis López from Double A Laredo. | | Promoted RF Matthew McClellan to Double A Laredo. | | Received SS Raúl Cervantes from Double A Laredo. | | Drafted SP Jack Summers in the 1959 first-year player draft (Round 6, Pick 10, 97th overall pick). | | Drafted MR Ron Harrington in the 1959 first-year player draft (Round 7, Pick 10, 113rd overall pick). | | Drafted MR Raúl Molina in the 1959 first-year player draft (Round 8, Pick 10, 129th overall pick). | | Drafted SP José Gómez in the 1959 first-year player draft (Round 9, Pick 10, 145th overall pick). | | Drafted SP Kip Miles in the 1959 first-year player draft (Round 10, Pick 10, 161st overall pick). | | Sunday, June 14th, 1959 | | Activated SS Luis López from the disabled list. | | Friday, June 12th, 1959 | | Activated SP Ben Sánchez from the disabled list. | | Thursday, May 14th, 1959 | | Placed 1B Pancho Cortéz on the 15-day disabled list. | | Thursday, April 16th, 1959 | | Placed SP Ben Sánchez on the 15-day disabled list. | | Friday, September 26th, 1958 | | Activated SP William Jensen from the disabled list. | | Sunday, September 21st, 1958 | | Released 3B Jim Evans. | | Friday, September 19th, 1958 | | Released 3B Pat Hutton. | | Thursday, September 4th, 1958 | | Signed Manager Rodrigo López to a 2-year contract extension. | | Signed Pitching Coach José Díaz to a 1-year contract extension. | |
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