McMurtry spent the first seven years of his boyhood in Ft. Worthbut was raised mostly in Leesburg, Virginia. He attended the Woodberry Forest School, Orange, Virginia. He began performing in his teens, writing bits and pieces. He started performing his own songs at a downtown beer garden while studying English and Spanish at the University of Arizona in Tucson. After traveling to Alaska and playing a few gigs, he returned to Texas and his father's "little bitty ranch house crammed with 10,000 books". After a time, he left for San Antonio, where he worked as a house painter, actor, bartender, and sometimes singer, performing at writer's nights and open mics.