Paxton is the first daughter of Tim Anderson and his wife, Bria Anderson. She was born in 2016.
Paxton has a younger sister called Payton who was born in 2019. The two live with their parents in Chicago.
Unlike her parents who are popular in the media space, Paxton and her sister have been living a private life. However, occasionally, their parents share pictures of them on their social media pages.
In a 2019 interview, Paxton’s father, Anderson said he kind of felt like today’s Jackie Robinson about him wanting to change baseball. During a game on May 21, 2022, against the New York Yankees, Yankee’s third baseman Josh Donaldson jokingly called Anderson “Jackie”.