Nathan Caldwell was born on March 5, 2007. to Paul Caldwell and Christina Caldwell. He was the couple's fourth child, and they went on to have five more children after him.
As a young child, Nathan lived in Woodbridge, Virginia, where his father was a pastor at Heritage Baptist Church. In 2008, his father was sent by Baptist International Missions, Inc. to plant a church in Fayetteville, Arkansas. Nathan has lived there with his family since then.
Nathan is being homeschooled alongside his siblings.