PHR Owner

Bob Mullenax


Bob Mullenax is the founder and owner of The Pine Hill Ranch. LLC. Bob fell in love with horses as a six year old little boy on the back of a Shetland pony named Dobber. As an adult, his fondness for horses was rekindled and he purchased a young American saddlebred named Red Hot Mamma. Red hot Mamma, aka “Girlfriend” would go on to become a show horse and earn Bob Six world championship titles. As a result, Bob’s fondness for horses became a passion for excellence.

As an entrepreneur, Bob is familiar with both failure and success. He has had his share of both. Today Bob owns several companies which provide health related services to nursing home residents. He attributes his successes to God’s blessings in his life.

Bob’s passion for excellence has become the standard for everything at the Pine Hill Ranch.

Equestrian Center Staff

Stacey Husman

Stacey Husman is passionate about sharing her love of horses and equipping her students with skills to reach their equestrian goals.  It all began on a farm in Kansas, where Stacey grew up riding, training and showing American Quarter Horses.  Stacey went on to become a starting member of the Oklahoma State Equestrian Team.  As Stacey’s career shifted from collegiate to professional, she has gone on to train, show and coach several Regional, National and World Champions.

The Pine Hill Ranch proudly welcomes Stacey Husman to the Equestrian Center.

Faith Grafe

Assistant Lesson Coordinator

Faith Grafe’s equestrian journey began on an Arabian horse farm when she was only 5 years old. With a strong foundation in Western Pleasure and Hunt Seat, she has also ridden Hunter Jumpers, reining, cutting and roping horses, and has been involved with Hippotherapy and Therapeutic Riding. She has conducted riding lessons and summer camps and has rehabilitated several rescue horses.

Faith has a strong passion for teaching and instructing others, and finds joy in leading them to success both in and out of the show pen. Horsemanship has enriched her life and she feels blessed to share that with others. Faith is honored to be a part of the Pine Hill Ranch and the life changing experiences that are possible.

Maddy Knox

Junior Instructor at the equestrian center

Maddy Knox was quickly immersed with the love for horses at a very young age, by first experiencing the English world to falling in love with the life of the rodeo. Maddy currently competes all over the state of Arkansas in various rodeos, jackpots and other competitions. Throughout her riding career she has earned various prizes, from placing multiple times in the top 5 at the Arkansas State Championship Show, to winning jackpots against all ages. Maddy is not only accomplished in the equestrian world but is also very apt in school and takes pride in being top 10 of her class and plans on attending UCA in the fall of 2019, majoring in Biochemistry. Maddy is very excited for the opening of the equestrian center at Pine Hill Ranch, and says, “I can’t wait to help build an everlasting bond with people, and horses, truly an amazing outlet for people of all ages!”

Sam Hilterbrand

Equestrian Center Farrier

The Pine Hill Ranch is honored to have Sam Hilterbrand as part of our PHR team.

Sam is an active member of the American Farrier Association. A well known and respected farrier for over 40 years, Sam has contributed to many equine success stories and has established himself as one of the top professional farriers within Arkansas and nation wide. Sam also owns, breeds, and shows American Quarter Horses. He and his wife Susan proudly own Circle H Quarter Horses home to Clusos Invested Skip. As an equine professional Sam continues his education and crafting his skill with attending International Hoof-Care Summit in Cincinnati annually and remains a solid source of knowledge and information for our community.  We are thrilled to have such a wonderful horseman and equine expert added to The Pine Hill Ranch Equestrian Center.

Sierra Parent

Barn Manager

Sierra is a long time horse lover and highly qualified equestrian. Her years of experience combined with her knowledge and passion for horse care makes her the perfect person to manage and care for our Pine Hill Family.