Dr. Sells is a native of Central Texas; he received his first B.S. degree from Sul Ross State University in Range Animal Science in 1976. He received a second B.S. Degree in Veterinary Science in 1978 and his D.V.M. from Texas A & M Univeristy in 1980. Having practiced in Burnet, Texas for two years before settling in Bandera in 1982, Dr. Sells was a mixed practice owner for 20 years before finally limiting his practice to primarily equine and exotic wildlife.

His personal interests include ranching, hunting and restoring vintage motorcycles and trucks.

Dr. Sells has been married to his wife Carolyn for 34 years and they have 4 children. They have continued in the the Aggie Tradition. Stephanie, class of 2004, received her B.S. in education and is presently teaching at Bandera Middle School. She is married to Kirby Jones and they have 2 children, Maverick and McKenna. Colton, class of 2007, received his B.S. in animal science with an emphasis in meat science. He is employed at Klein Smoked Meats-Hudson Sausage in Austin, TX. Carter, class of 2010, studied poultry science and is employed at Slovacek Sausage in Snook, TX. Shevawn, class of 2012 is pursuing a degree in Kinesiology. She will student teach in the fall of 2012 and graduate that December. Shevawn is a lifeguard and works at the Student Recreation Center on campus.