Memphis Williams was born on Dec. 1, 2017. He is Jason's only son and his oldest child with his current wife, Brittany. Brittany told Country Living in 2019, "We had a really hard time getting pregnant and went through about a year and a half of failed attempts. Finally, I got pregnant with Memphis which was awesome because Jason always wanted a boy." Memphis has also already joined his dad on the road in his few years of life, Jason told Us Weekly in early 2020, but Memphis largely stays with Brittany while they travel.