Carl Duff

Carl Duff is a Scottish terrier breeder in Sullivan, MO, serving Franklin County and east-central Missouri near St. Louis. It conducts health screenings for joint and eye conditions before breeding and registers every litter with the American Kennel Club to ensure traceable lineage. As a family-run establishment, it follows breed club guidelines to promote sound temperament and longevity.

Its puppies are raised indoors with consistent socialization, gentle handling and supervised outdoor play among shaded yards and wooded walking trails. Its adult dogs enjoy regular vet care and live alongside the family, which helps foster strong bonds and confidence. Several of its Scottish terriers have earned championship titles in regional shows and have participated in community therapy events. Each puppy comes with a written health guarantee and a detailed milestones report to support a smooth transition into its new home.