Dr. Blagg was born in Brownwood, Texas but grew up in San Angelo, Texas. He has been married for almost 30 years to his wife Dottie, who is a pharmacist and a talented triathlete, and has two sons named Robert and Ben. He is also a proud grandparent to grandson James and granddaughters Ada and Nora. Dr. Blagg and Dottie live in New Braunfels with their dog Ginger. When not working, Dr. Blagg enjoys fishing, running, cycling, swimming, skiing, and practicing his French. He is a member of the American Veterinary Medical Association, of the Texas Veterinary Medical Association, and of the Comal County Veterinary Medical Association [citation].