



I'm Hannah C., the breeder behind Claymore Mastiffs located in Adrian, MO. Hi! My name is Hannah and I am the face behind Claymore Mastiffs. I've been involved in the breed my entire life. I started out with my childhood Mastiff Lily and was her handler for therapy work. The obsession spiraled from there. I adore this breed and strive to produce not only temperamentally and structurally sound dogs, but dogs who have working ability as well. Draft work, obedience, property guardians, agility, waterfowl retrieval, lurecoursing, we like to dabble in a bit of everything!

Why did you start breeding?
What makes your program special?
What are the different breed coat colors in your program?
Where do your breeding dogs live?

These dogs are already reserved or have gone home.
Girl 2
Female
Girl 3
Female
Girl 4
Female
Boy 1
Male
Girl 1
Female
Hannah 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.

"Price includes everything normal like puppy packs, registration, contract, health guarantee, microchip, etc. Deposits are accepted once the puppies are 6 weeks old. Decisions on who will be going where are made between the ages of 8-12 weeks."
Hannah 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 Hannah 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 Hannah directly.
You can drive or fly to pick up your puppy from Hannah.
Meet in Adrian, MO
910 miles away
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Meet at Kansas City Airport (was Mid-Continent )
922 miles away
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Club memberships
Hannah is a member of Midwest Dog Fanciers and The Mastiff Club of America.
Hannah has been a member of Good Dog for almost 5 years
Hannah was screened for responsible practices and has been a member since 2021.

Claymore Mastiffs meets or exceeds our community standards in these areas:

Mastiff
About Gary
Gary is a male Mastiff. Carefully selected as a great representative of his breed, Hannah decided to make him part of their program. Hannah 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.

Mastiff
About Dolly
Dolly is a female Mastiff. Carefully selected as a great representative of her breed, Hannah decided to make her part of their program. Hannah 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.

Mastiff
About Theia
Theia is a female Mastiff. Carefully selected as a great representative of her breed, Hannah decided to make her part of their program. Hannah 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.

Mastiff
About Charli
Charli is a female Mastiff. Carefully selected as a great representative of her breed, Hannah decided to make her part of their program. Hannah 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
Claymore Mastiffs 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 Mastiffs.
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.
Elbow Dysplasia Finals (OFA, BVA, SV, FCI)
Elbow testing reduces the chance of passing down elbow dysplasia, which is primarily found in large breed dogs and can cause arthritis in the elbow joint and front leg lameness.
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.
Thyroid (Autoimmune Thyroiditis, registered with OFA)
A breeder may perform additional tests on their dogs that do not fall into these general categories. These tests may be more uncommon or very specific to a particular breed.
Multifocal Retinopathy 1 (CMR1), Degenerative Myelopathy (DM; SOD1A), Cystinuria Type 3, English Mastiff Type Risk Factor, PRA Dominant (DPRA), Mastiff Type
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).