Dr. Roy Gully grew up in Eastern Mississippi on his family farm with their dogs, horses, pigs and cattle. Dr. Gully attended Mississippi State University where he completed his pre-veterinary requirements. He graduated from Louisiana State University's School of Veterinary Medicine in 1978, the second graduating class in school's history.

While completing his studies in veterinary school, he worked during the summers in Texas at various veterinary clinics and following graduation moved to the Arlington/Mansfield area in 1979. He opened his first small practice in 1981, and has been in small animal practice ever since. In his free time, Dr. Gully spends time outdoors with his wife, Rhonda and their family bird dogs (Honey Bear, Kate, Kiki, LuLu and Michelle). They enjoy hiking, biking, camping, hunting and fishing.