Maston O'Neal Jr. holds a Bachelor's degree from Davidson College and has a foundational background in education, having served as the principal of Shellman High School. He was admitted to practice law in the Albany circuit and spent 23 years as the solicitor general of the Albany Judicial Circuit, including multiple reelections without opposition. O'Neal also served in the United States Naval Reserve during World War II, demonstrating leadership and commitment to national defense.

Maston O'Neal Jr. presents a unique blend of ideological agility, advocating for local economic growth while also championing environmental sustainability. His support for rural economic policies juxtaposes with his commitment to conservation, hinting at a nuanced approach to balancing development and ecological protection. O'Neal's dedication to public education, rooted in his experience as a school principal, underscores a consistent theme of community investment. His military service adds a layer of personal commitment to national defense, enriching his policy perspectives. This combination of roles and positions suggests O'Neal operates with a finely tuned balance between local interests and broader national concerns.