He was courting Majorie Jackson, but it was announced on August 5, 2015, that the courtship had ended:
"Both Josiah and Marjorie have enjoyed getting to know each other and to build their friendship over the past months," the Duggars told ABC News in a joint statement. "We are so grateful that they each are seeking the Lord's will for their future. A few weeks ago Marjorie and Josiah agreed to end their courtship, keeping in step with what they believe the Lord's will is. Both are thankful for the time getting to know each other, and their families continue to enjoy each other's company and close friendship."