The couple is already parents to three children: Wells, Ella and John ...

The Duck Dynasty crew just expanded by two: John Luke Robertson and his wife Mary Kate just welcome twin daughters. They shared their news in a social media post, explaining that baby girls Sylvie and ...

The "Duck Dynasty" family grows again as John Luke and Mary Kate welcome twin girls.

"Life is already so much sweeter with Sylvie & Francie in it. So thankful for these precious gifts!!" ...

The Duck Dynasty family just got bigger as John Luke Robertson and his wife, Mary Kate Robertson, have welcomed twin daughters.