[2] The Busby family consists of Adam and Danielle Busby, who have been married since 2006; eldest daughter Blayke Louise; and quintuplets Ava Lane, Olivia Marie, Hazel Grace, Riley Paige and Parker Kate.

Adam and Danielle had struggled with infertility, ultimately becoming pregnant both times by intrauterine insemination.

[5] The quints spent the first eight to twelve weeks of their lives in the neonatal intensive care unit at the Woman's Hospital of Texas,[6] before being released to go home between June and July 2015.

[7] The condition causes Hazel to have uncontrolled eye movements and hold her head at unusual angles to compensate for her lack of clear vision.

[9][10] In 2017, Hazel was diagnosed as having an astigmatism in her left eye, which may ultimately be responsible for it occasionally turning in as a result of being underdeveloped.