Born: March 19, 1884, Mills County, Texas.
Died: December 2, 1940, Okmulgee, Oklahoma.
Buried: Council Hill Cemetery, Okmulgee, Oklahoma.
Leslie was the son of Robert T. A. Park and Kittie Banta. He married twice: to Dessie Iduma Parker (October 18, 1909), and Juanita Barwis (November 23, 1936).
He was a Church of Christ minister and evangelist, and, at various times, worked as a barber and mail carrier.