John was born in Greenwood and graduated from Greenwood High School. From there he attended the University of Mississippi at Oxford, where he received a Bachelor of Arts degree majoring in Biology. Next he attended The University of Tennessee College of Dentistry on a U S Navy Scholarship, graduating with the degree of Doctor of Dental Surgery and the rank of Navy Lieutenant.
As an active member of the American Dental Association and the Mississippi Dental Association and several online dental groups, Dr Smith enjoys working with other dentists in Mississippi and across the nation to improve the delivery of dental services, and to raise public awareness of the advantages of modern high tech dentistry. He also enjoys road bicycling, boating and computing.
For 35 years John has been accompanied by his loyal and loving wife Georgeanne Seale, who provides management support and bookkeeping for the practice. They have a daughter, Georgia Hart, who is a student at the University of Mississippi.