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InStyle's January cover girl Jennifer Garner and her husband, Ben Affleck, announced the birth of their third child in Februaryand it's a boy! The proud father announced his new son's name on Facebook, Samuel Garner Affleck, a name the couple's daughters Violet, 6, and Seraphina, 3, helped influence. "At first they were definitely Disney, it was like Donald Duck, Minnie Mouse Affleck," Garner told Jay Leno. "Now they're coming up with lists and saying 'Let's have a baby naming contest! Let's have a baby naming poll!'" Congrats to the entire Affleck family!