| Tuesday, August 2nd, 1955 | Activated SP Jimmy Wolfe from the disabled list. | Sunday, July 31st, 1955 | Placed LF Hollis Chase on the 15-day disabled list. | Friday, July 29th, 1955 | Activated RF Nick Sweet from the disabled list. | Sunday, July 17th, 1955 | Placed SP Jimmy Wolfe on the 15-day disabled list. | Friday, July 8th, 1955 | Activated 2B Thomas Chapman from the disabled list. | Wednesday, June 15th, 1955 | Promoted SP Alfonso Trejo to Double A Corpus Christi. | Received SP Doug Stewart from Double A Corpus Christi. | Drafted MR António Vanega in the 1955 first-year player draft (Round 6, Pick 6, 95th overall pick). | Drafted 1B José Chávez in the 1955 first-year player draft (Round 7, Pick 6, 112nd overall pick). | Drafted SP Joe Hatcher in the 1955 first-year player draft (Round 8, Pick 6, 128th overall pick). | Drafted MR Peter Lowe in the 1955 first-year player draft (Round 10, Pick 6, 160th overall pick). | Tuesday, February 8th, 1955 | Activated SP Doug Stewart from the disabled list. | Saturday, November 20th, 1954 | Activated SP Elia Tari from the disabled list. | |
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