Lieutenant Commander (later Admiral) Leonard H. McCoy, M.D, chief medical officer aboard the USS Enterprise (NCC-1701), was born in Atlanta, Georgia, Earth, in 2227 to Mr. and Mrs. David McCoy.
He enrolled at the University of Mississippi in 2245. That year, an interplanetary gymnastics competition was hosted by the University of Mississippi and held at the Menlo T. Hodgkiss Memorial Gymnasium on the Oxford campus, where he met the Tr’i’ll Emony Dax, who was visiting Earth to judge the competition. According to Dax, McCoy “had the hands of a surgeon.”
McCoy enrolled at the University of Mississippi Medical School in 2249. While in medical school, McCoy and his friends often substituted real drinking glasses with tricklers at parties. (What fun.) He graduated in 2253.
McCoy met his future wife Pamela Branch at Ole Miss when she suffered brain-freeze from an ice cream cone. Branch wore white at the wedding ceremony and adopted the last name McCoy. She divorced him in 2255 because their professions kept them apart.
In the divorce, she acquired their house on Mars, six cars and a valuable Vulcan painting.She also received custody of their daughter, Joanna. McCoy told Kirk that the divorce left him nothing but bones (thus his nickname). Shortly afterwards, McCoy enrolled in Starfleet Academy.
The rest, as they say, is history.