Johnson American Bulldogs & Scott American Bulldogs

Most people are familiar with English Bulldogs and French Bulldogs, but fewer realize that the American Bulldog are a distinct and historically significant breed of their own. Developed in the United States from working bulldogs brought over by European settlers, the American Bulldog is taller, leaner, and far more athletic than their English cousin. With longer legs, greater speed, and impressive strength, these dogs were traditionally used for farm work, guarding property, and hunting large game.

American Bulldogs are known for their loyalty, courage, and protective nature. They tend to be affectionate and playful with their families, especially children, while remaining alert and watchful around strangers.

When properly socialized from a young age, American Bulldogs often coexist well with other dogs and household pets. However, due to their working background and strong prey drive, they may show aggression toward unfamiliar animals. The average lifespan of an American Bulldog is 10 to 12 years.

The Origins of the Johnson and Scott Lines

By the early 20th century, the American Bulldog population had dwindled significantly and came close to extinction. The breed’s survival is largely credited to two breeders in the mid-1900s: John D. Johnson and Alan Scott. Each worked to preserve the American Bulldog, but they emphasized different physical traits and working abilities, resulting in two distinct lines: the Johnson (Classic) type and the Scott (Standard) type.

Johnson American Bulldogs (Classic Type)

Johnson American Bulldogs, often called Classic American Bulldogs, are the larger and heavier boned of the two types. They typically stand 23 to 27 inches tall at the shoulder and weigh between 90 and 120 pounds, with some individuals exceeding that range.

This type is characterized by a broad chest, thick neck, and massive, boxy head, giving them a closer resemblance to the English Bulldog or even a Bullmastiff. Johnson Bulldogs have heavier bones, shorter legs that angle slightly outward, and a powerful, stocky build. Facial wrinkles and a pronounced undershot bite are common and considered a hallmark of the type.

In terms of coloring, Johnson American Bulldogs are usually white with patches of red, brown, brindle, or black. Their imposing appearance makes them excellent guard dogs, and they tend to be calmer and less driven by prey than Scott-type Bulldogs, though early training and consistent leadership are essential.

Scott American Bulldogs (Standard Type)

The Scott American Bulldog, also known as the Standard American Bulldog, is more athletic and agile. These dogs typically measure 22 to 27 inches at the shoulder but weigh less than their Johnson counterparts. Their build is leaner, with longer legs positioned directly under the body, allowing for greater speed and endurance.

Often compared in appearance to a large, muscular white Pit Bull, Scott Bulldogs have a narrower head, longer muzzle, and fewer facial wrinkles. Their bite is usually level or slightly undershot, often described as a reverse scissors bite. Most Scott American Bulldogs are solid white or white with minimal markings.

Because they were bred with performance and utility in mind, Scott Bulldogs tend to have a strong prey drive and higher energy levels. They excel in activities that require stamina and athleticism but may be more prone to dog-to-dog aggression if not properly socialized and trained.

Temperament, Training, and Lifestyle Differences

Although Johnson and Scott American Bulldogs share a common ancestry, their temperaments and daily needs can differ in ways that matter to potential owners. Understanding these differences can help readers decide which type may be a better fit for their household, experience level, and activity expectations.

Johnson American Bulldogs tend to be more laid-back and deliberate in their movements. While still energetic and playful, they often mature into calmer adults who are content spending time with their family and monitoring their environment. Their strong protective instincts make them naturally watchful, and they often bond deeply with one primary owner. Because of their size and strength, early obedience training is especially important, but many Johnson-type Bulldogs respond well to consistent, confident leadership and positive reinforcement.

Scott American Bulldogs, by contrast, are typically more driven and high-energy. They thrive on physical activity, mental stimulation, and structured work. Without adequate exercise and training, Scott Bulldogs may become bored or develop unwanted behaviors such as excessive barking, digging, or reactivity toward other dogs. These dogs often excel in activities such as weight pulling, agility, obedience training, or farm work, where they can channel their athleticism and prey drive productively.

In multi-pet households, both types can coexist peacefully with other animals if socialized early, but Scott American Bulldogs may require more careful management due to their stronger chase instincts. Johnson Bulldogs, while generally less prey-driven, still benefit from early exposure to other pets and clear boundaries.

From a lifestyle perspective, Johnson American Bulldogs are often better suited to families looking for a protective companion with moderate exercise needs, while Scott American Bulldogs may be a better match for experienced owners who enjoy an active, hands-on relationship with their dog. Regardless of type, both benefit from early socialization, structured training, and owners who understand the breed’s strength, intelligence, and working heritage.

Choosing Between the Two

While both types share the same breed heritage, the choice between a Johnson and Scott American Bulldog often comes down to lifestyle and preference. Families seeking a bulkier, more laid-back guardian may gravitate toward the Johnson type, while active owners looking for a more agile and driven working dog may prefer the Scott type. Regardless of lineage, proper training, early socialization, and responsible ownership are key to raising a well-adjusted American Bulldog.

To learn more about the breed, click here.

To explore other bulldog varieties, visit Learn More About the Types of Bulldogs.