I'm Mary Jo M., the breeder behind MacPak Golden Retrievers located in Maine. We hold ourselves to the highest standard when it comes to our dogs and our policies. We take responsible breeding very seriously. Our breeding program focuses on maintaining the unique characteristics specific to the breed while striving to produce puppies of superior health, temperament, and conformation. We are proud of our dogs and their puppies, and it is always our goal to preserve and better the breed with each litter.
Mary Jo has been certified by Good Dog’s screening team for responsible and trusted breeding practices. When you’re ready, reach out to ask about the puppies or anything else on your mind. You’ll get to know each other through messaging, phone, or video and pay securely, all on Good Dog.
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.

Mary Jo 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 Mary Jo 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 Mary Jo directly.
When you pay and communicate on Good Dog, you’re covered by Payment Protection.
You can drive or fly to pick up your puppy from Mary Jo.
Meet in Maine
594 miles away
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Mary Jo has been a member of Good Dog for almost 3 years
Mary Jo was screened for responsible practices and has been a member since 2023.
MacPak Golden Retrievers meets or exceeds our community standards in these areas:
Great level
MacPak Golden Retrievers 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 Golden Retrievers.
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.
DNA Disease Panel, Ichthyosis, Golden Retriever Type, Neuronal Ceroid Lipofuscinosis 5 (NCL5), Golden Retriever Type, Degenerative Myelopathy (DM; SOD1A), PRA, Rod-Cone Degeneration (PRA-prcd), PRA, Golden Retriever 2
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).