Marrion holds undergraduate degrees from both Jackson State University and the University of Mississippi Medical Center, as well as a Master of Science in Nursing from UMMC. Marrion is married to her husband, David, and has two daughters and one son. She is a board-certified Family Nurse Practitioner and a member of the American Academy of Nurse Practitioners. She has been working in the medical field since 2010. Marrion enjoys traveling and spending time with her family.