| Saturday, August 13th, 1955 | Placed LF Javier Vázquez on the 15-day disabled list. | Sunday, July 17th, 1955 | Placed LF Ray Lawson on the 15-day disabled list. | Sunday, July 10th, 1955 | Placed SP Charlie Kemp on the 15-day disabled list. | Monday, June 27th, 1955 | Released SS Phil Hall. | Wednesday, June 15th, 1955 | Placed SP Charlie Kemp on the 15-day disabled list. | Drafted CF Ray Lawson in the 1955 first-year player draft (Round 6, Pick 1, 90th overall pick). | Drafted 2B Brian Wright in the 1955 first-year player draft (Round 7, Pick 1, 107th overall pick). | Drafted CF Steve Baker in the 1955 first-year player draft (Round 8, Pick 1, 123rd overall pick). | Drafted LF Gustavo Pérez in the 1955 first-year player draft (Round 9, Pick 1, 139th overall pick). | Drafted MR Travis Locke in the 1955 first-year player draft (Round 10, Pick 1, 155th overall pick). | Sunday, June 5th, 1955 | Activated SS José Crus from the disabled list. | Thursday, April 21st, 1955 | Released SS Thu Vu. | Wednesday, September 22nd, 1954 | Activated C Roberto Rodríguez from the disabled list. | Friday, September 3rd, 1954 | Activated MR Bill Caldwell from the disabled list. | |
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