| Friday, July 27th, 1956 | Received SS Thu Vu from Triple A Keswick. | Friday, June 15th, 1956 | Released 1B Manuel Ramos. | Released 1B Gabriel Roberts. | Promoted SP Alfonso Rodríguez to Double A Alice. | Promoted 2B Luis León to Double A Alice. | Received SP Jorge Luyo from Double A Alice. | Received SS Jeff Cain from Double A Alice. | Drafted C Juan Morales in the 1956 first-year player draft (Round 7, Pick 2, 102nd overall pick). | Drafted SP Matt Davis in the 1956 first-year player draft (Round 8, Pick 2, 118th overall pick). | Drafted 3B Román Valenzuela in the 1956 first-year player draft (Round 9, Pick 2, 134th overall pick). | Drafted SP Ron Beattey in the 1956 first-year player draft (Round 10, Pick 2, 150th overall pick). | Placed RF Doug Roberts on the 15-day disabled list. | Thursday, April 12th, 1956 | Placed 2B Gabriel Rivera on the 15-day disabled list. | |
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