Watch: Duck Dynasty's Merritt Robertson Gives Birth, Welcomes Baby 2 Months After Sister PriscillaJohn Godwin's dynasty has expanded. The Duck Dynasty alum's daughter Johanna Mata recently welcomed twin daughters Cassandra and Isabella with her husband Cecilio Mata-though the birth didn't go quite as expected. "They're here too early," John shared on the Jan. 1 episode of the Duck Call Room podcast, explaining how the baby girls arrived weeks before their due date. "Still in the NICU.