



I'm Thomas and Shannon G., the breeder behind Cornerstone Border Terriers located in Coleman, OK. Our dogs are bred with the intent to improve the breed as a whole. It is our goal to maintain the health and structural standards set forth by the Border Terrier Club of America. Our dogs are bred with a focus on conformation, and every one of them are happy, healthy pets first.

Why did you start breeding?
What makes your program special?
Where do your breeding dogs live?

These dogs are already reserved or have gone home.
Boy 1
Male
Boy 5
Male
Boy 2
Male
Boy 4
Male
Boy 3
Male
Girl 3
Female
Girl 2
Female
Girl 1
Female
Penelope
Female
Thomas and Shannon has been certified by Good Dog's screening team for responsible and trusted breeding practices. When you're ready to reach out, feel free to ask any questions about the breed, their program, or specific puppies.
Together, you’ll choose the puppy that’s right for you, stay in touch with regular updates, and plan how to bring your new puppy home.

"The price of the puppy includes prepaid AKC registration, prepaid microchip registration, the first set of shots, and up-to-date deworming. Also in my contract, I offer a buy-back guarantee. All of our puppies are the same price. It is fully refundable. The deposit contract available upon request for review. I request we speak on the phone before agreeing to add someone to the wait list."
Thomas and Shannon may provide a written contract or health guarantee when you purchase a puppy. This helps protect both you and your breeder, ensuring that you both have a clear understanding of the terms of your puppy purchase. If Thomas and Shannon offers a contract or guarantee, the details will be personalized by them. If you have any questions or want to know more, don't hesitate to reach out to Thomas and Shannon directly.
You can drive or fly to pick up your puppy from Thomas and Shannon.
Meet in Coleman, OK
1098 miles away
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Meet at Will Rogers World Airport
1133 miles away
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Meet in Oklahoma City, OK
1127 miles away
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Club memberships
Thomas and Shannon is a member of Border Terrier Club of America.
Thomas and Shannon has been a member of Good Dog for over 4 years
Thomas and Shannon was screened for responsible practices and has been a member since 2021.
Thomas and Shannon’s links

Cornerstone Border Terriers meets or exceeds our community standards in these areas:
Border Terrier
About Regan
Regan is a good boy who loves to play with empty milk jugs of all things. We buy him nice toys but he still prefers the empty milk jugs. :-) He loves to entertain himself while in the house by throwing toys in the air and catching them and snuggling on our recliners with us.
Uploaded health tests
Border Terrier
About Agnes
Agnes is a bundle of fun. Her favorite activity is mix and opposite. She loves to play fetch with her wubba and she also enjoys piling up on the couch and relaxing. She is a born show dog and loves to strut her stuff in the ring. Agnes is clear on SLEM and we plan to have the rest of her health clearances done in the next few months.
Uploaded health tests
Border Terrier
About Sophie
Sophie is a female Border Terrier. Carefully selected as a great representative of her breed, Thomas and Shannon decided to make her part of their program. Thomas and Shannon has passed Good Dog’s screening process, which involved a review of their breeding practices, environment, and the mental and physical health of their dogs.
Excellent level
Cornerstone Border Terriers reports to performing the health tests below on their breeding dogs. Ask your breeder about the tests performed on the parents of your litter. Learn more about health testing for Border Terriers.
Hip Dysplasia
Hip testing reduces the chance of passing down hip dysplasia, which is primarily found in large breed dogs and can cause hip pain and the eventual loss of the function of the hip joint.
Eye Certification (CAER, registered with OFA)
Eye testing reduces the chance of passing down a wide range of hereditary eye illnesses including retinal dysplasia, lens luxation, and glaucoma, which can cause impared vision or blindness.
Cardiac Evaluation (registered with OFA)
Heart testing reduces the chance of passing down congenital heart disease, which can cause a range of symptoms ranging from trouble exercising to heart failure.
Patellar Luxation
Knee testing reduces the chance of passing down Patellar Luxation, which results in the kneecap becoming displaced or dislocated and can cause mild to severe joint pain.
Spongiform Leukoencephalomyelopathy (SLEM)
Genetic testing reduces the chance of passing down a wide variety of hereditary diseases of differing prevalence and severity such as Progressive Retinal Atrophy (an eye disease) and Von Willebrand's Disease (a blood disease).
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.
Health testing is one key piece of responsible breeding and is performed on breeding dogs to prevent the presence of heritable conditions in their puppies.