She is the sister of Garrett Duggar.
"We are ready to double the fun at our house! Being parents has already proven to be a greater joy than we had hoped or imagined. We love getting to parent together and are loving every moment and milestone. We are very happy that our little family will welcome a new addition later this year. Children really are a blessing from God!"
On June 25, 2019, Joseph and Kendra shared that they are expecting a girl. For the gender reveal, they arranged for the inside of their son's smash cake at his first birthday party to be pink, signaling that his new sibling would be a girl. Pictures of Garrett with his cake were first posted on the couple's Instagram account on June 8, Garrett's birthday, but only in black and white. It is speculated that the couple had planned to share the news a day or two later, but postponed after Joseph's grandmother, Mary, passed away on June 9.
"Addison Renee has made us a family of four and we are already so in love with her!" says the couples. "She made a quick arrival in the early hours of the morning and has already melted our hearts. We know Garrett is going to be a great big brother. Children are each a special gift from God and we are so happy our newest blessing is here."