Daniel David Palmer and the Birth of Chiropractic in Davenport

Chiropractic is a health profession centered on the diagnosis, treatment, and prevention of musculoskeletal system disorders, and the effects of these disorders on general health, which was founded by Daniel David Palmer in 1895 in Davenport, Iowa. The profession's origins are rooted in Palmer's earlier work as a practitioner of magnetic healing; as late as 1894, he advertised his Davenport practice as "Dr. In the 1890-91 Davenport city directory, Daniel D. Palmer was listed under the "Magnetic Healers" section with his practice located in rooms 7, 12, and 13 of the Ryan block. ¹. The formative event of the new discipline occurred on September 18, 1895, when Palmer performed what is considered the first spinal adjustment on a janitor named Harvey Lillard. This procedure took place in Palmer's office on the fourth floor of the Ryan Block building, a commercial property located at the corner of Second and Brady Streets in downtown Davenport ²³. Palmer theorized that a vertebra in Lillard's spine was misaligned, causing nerve impingement that led to his hearing loss, and that a manual thrust could restore both alignment and function. D.D. Palmer's patient and friend, Reverend Samuel Weed, suggested the name "chiropractic" by combining the Greek words cheiros (hand) and praktikos (done), to mean "done by hand." ⁴.

Palmer's foundational theory posited that disease resulted from "subluxations," which he initially defined simply as displaced vertebrae impinging on spinal nerves ⁵. He established the Palmer School and Infirmary of Chiropractic in Davenport in 1897 to teach this concept, which is detailed in his book The Chiropractor ⁶. The growth of this new profession was immediately met with legal challenges. In 1906, D.D. Palmer was charged in Scott County, Iowa, with practicing medicine without a license for publicly professing to cure or heal ⁷. He was found guilty and served 23 days in jail rather than pay a fine ⁷. This event was a catalyst for the profession's fight for legal recognition, directly spurring the creation of the Universal Chiropractors' Association (UCA) to fund the legal defense of arrested practitioners. Palmer's case was a direct antecedent to the landmark 1907 Wisconsin legal victory for chiropractor Shegataro Morikubo, which successfully argued that chiropractic was a separate and distinct profession from medicine ⁸. This history is documented in J. Stuart Moore's Chiropractic in America ⁹.

Concurrent with its legal battles, the nascent profession experienced significant internal philosophical divisions that also originated in Davenport. A schism developed between Palmer's "straight" chiropractic, which adhered strictly to spinal adjustment for correcting subluxations, and the "mixers," who sought to combine chiropractic with other healing modalities like nutrition and physiotherapy ¹⁰. Early students, including Willard Carver, broke from Palmer, citing dissatisfaction with what they saw as D.D. Palmer's "erratic way of doing things" and the leadership of his son, B.J. Palmer ¹¹. Carver went on to form his own institution, the Carver College of Chiropractic, representing one of the first major institutional fractures in the field ¹¹. The complex and often contentious relationship between D.D. and B.J. Palmer, which included a controversial 1913 public parade incident in Davenport ¹², further shaped the profession's early development. Through these foundational events, theoretical evolutions, and legal and philosophical conflicts, Davenport, Iowa, was established as the "fountainhead" of chiropractic, a legacy embodied by the continuing operation of the Palmer College of Chiropractic ².

Palmer's background and magnetic healing practice (1880s, 1894)

Daniel David Palmer was born on March 7, 1845, in Port Perry, Ontario, Canada, to a family of modest means. His formal schooling was limited, which was not unusual for the time, and his early adulthood was spent in a variety of occupations, including that of a beekeeper, schoolteacher, and proprietor of a grocery business ⁹. In 1865, Palmer immigrated to the United States with his family, eventually settling in the American Midwest. He was an avid reader and largely self-educated, developing a strong interest in the popular health and philosophical movements that flourished in the 19th century, an era characterized by a public hunger for alternatives to the often harsh methods of orthodox medicine ⁹¹³. Palmer's intellectual pursuits led him to explore spiritualism, mesmerism, and other forms of vitalistic healing that proposed health was dependent on the proper flow of a life force.

By the mid-1880s, Palmer had decided to pursue a career in alternative healing, specifically focusing on magnetic healing, a popular drugless therapy of the period. This practice was founded on the theory of "animal magnetism," which held that an invisible vital force permeated all living things and that a practitioner could channel this energy to restore a patient's health, often through methods involving the laying on of hands ⁹. After practicing for a short time in Burlington, Iowa, Palmer relocated his practice in 1887 to the larger, more prosperous city of Davenport. There, he established the Palmer Cure & Infirmary on the fourth floor of the Ryan Block building at the corner of Second and Brady Streets, a location that would later become the birthplace of chiropractic ²³. His practice grew rapidly, and he earned a considerable income, demonstrating his success in this field prior to any of his later discoveries ¹⁴.

For nearly a decade, Palmer built a successful and lucrative practice as a magnetic healer in Davenport. His professional identity was clearly defined in public records and advertisements. For example, the 1894 Davenport city directory listed his business as "Dr. Palmer, Magnetic Curer," a title he used despite not holding a state-recognized medical degree ¹. As a magnetic healer, Palmer's method did not yet involve the specific spinal thrusts that would define chiropractic. His self-described technique involved locating areas of "inflammation" in a patient's body and then applying his hands to "cool them off" by projecting what he termed his own abundant vital magnetic energy into the afflicted person ⁶. Through this process, he claimed to restore normal bodily function. His reputation grew as he treated a wide array of conditions, attracting a large clientele from Davenport and surrounding regions who sought relief from ailments that conventional medicine had not resolved ⁹. This successful practice provided both the financial foundation and the clinical patient base that directly preceded his formulation of chiropractic theory in 1895.

The first adjustment and the naming of chiropractic (1895-1897)

The seminal event in chiropractic's history is traditionally dated to September 18, 1895, inside Daniel David Palmer's magnetic healing offices on the fourth floor of the Ryan Block building in Davenport, Iowa ²³. According to accounts later published by Palmer, he had a conversation with Harvey Lillard, a janitor who worked in the building ⁹. Lillard related that he had lost most of his hearing 17 years prior, immediately after feeling something "give" in his back while stooping in a cramped position. Palmer's examination of Lillard's spine revealed a palpable, painful vertebra that he determined was out of its normal alignment.

Reasoning that this displaced vertebra could be the cause of Lillard's deafness, Palmer decided to attempt to reposition it. After persuading a reluctant Lillard, Palmer applied a specific thrust to the bone. As Palmer recounted in his 1910 book The Chiropractor, the vertebra audibly moved back into place, and Lillard's hearing began to return almost immediately ⁶. After a few such treatments, Lillard claimed his hearing was nearly fully restored. This single case caused Palmer to abandon his magnetic healing practice and dedicate himself to a new theory of health and disease ⁹. He began to theorize that misaligned spinal vertebrae, which he termed "subluxations," were the cause of nearly all diseases by impinging on nerves and interfering with the body's natural flow of innate intelligence ⁵. Palmer's initial subluxation theory was a direct mechanical model, positing that a "bone out of place" physically compressed a nerve, thereby disrupting its function ⁵.

To differentiate this new "hand-treatment" from osteopathy and his prior magnetic healing work, Palmer sought a unique name. In 1896, he consulted with a patient and friend, Reverend Samuel Weed, a man knowledgeable in Greek and Latin ⁴. Weed suggested combining the Greek words cheiros (meaning 'hands') and praktikos (meaning 'done' or 'practice') ⁴. From these roots, they coined the new term "chiropractic," meaning "done by hand." Palmer immediately adopted the name for his new science and art of healing. By 1897, Palmer had fully embraced this new identity, founding the Palmer School and Cure in Davenport to teach his discovery to the first generation of chiropractors, thus formalizing the educational foundation of the emerging profession ¹⁴. The naming was a deliberate act to define chiropractic as a distinct discipline based on a specific principle and a specific method of application ¹³.

Founding of the Palmer School and early theory (1897-1905)

Following his shift from magnetic healing, Daniel David Palmer established the Palmer School and Cure in 1897, an institution dedicated to teaching his new method ¹⁴. The school was located in the same building where the first adjustment had purportedly occurred, the Ryan Block building at the corner of Second and Brady Streets in Davenport, Iowa ², ³. This move formalized chiropractic education, moving it from an apprenticeship model to a structured, albeit brief, curriculum. The initial classes were small, and D.D. Palmer's instructional style was often described as personal and intense, though some early students also characterized it as erratic ¹¹. The institution, later renamed the Palmer School of Chiropractic, became the foundational academic center for the profession ⁹.

During this period, D.D. Palmer articulated his foundational theory of the vertebral subluxation. His initial concept was a simple, mechanical model often referred to as the 'bone-out-of-place' theory ⁵. According to Palmer's early writings, a vertebra could become displaced, putting direct physical pressure on a spinal nerve. This impingement was believed to interfere with the flow of what he termed "Innate Intelligence," a vitalistic life force, thereby causing disease in the organ or tissue supplied by that nerve ⁶. The chiropractic adjustment was conceived as a specific manual thrust to reposition the bone, remove the pressure, and restore normal nerve function and health.

As the school grew, D.D. Palmer's son, Bartlett Joshua (B.J.) Palmer, became increasingly involved in both the administration of the school and the development of chiropractic theory. An early theoretical divergence began to appear between father and son. While D.D. adhered strictly to his 'bone-out-of-place' model, B.J. started developing a more complex understanding of the subluxation. B.J.'s emerging model focused less on simple bone displacement and more on the concept of nerve interference, famously using the "foot on the hose" analogy to describe reduced nerve energy transmission. He also began to emphasize the unique importance of the upper cervical spine (atlas and axis) as the primary site of subluxations affecting the entire body ⁵. This theoretical split would later define different schools of thought within the profession. The period also saw the beginnings of ideological schisms, with figures like Willard Carver, an early Palmer student, advocating for "mixing" chiropractic with other healing arts, a position D.D. Palmer vehemently opposed in favor of a "straight," unadulterated chiropractic ¹⁰, ¹¹. Palmer's public profession to cure and heal diseases, taught and practiced at the school, would directly lead to his 1906 arrest and conviction for practicing medicine without a license ⁷.

Legal challenges and the fight for legitimacy (1906-1907)

The increasing visibility of D.D. Palmer’s practice and school in Davenport inevitably brought the new healing art into direct conflict with established medical authorities and state law. In 1906, this tension culminated in the arrest of D.D. Palmer in Scott County, Iowa, on the charge of practicing medicine without a license ⁷. The specific complaint was not that he had harmed a patient, but that he was "publicly professing to cure or heal" human diseases, which fell under the purview of the state's Medical Practice Act ⁷, ⁸. Following a trial, Palmer was convicted and given a choice: pay a fine of $350 or serve 105 days in the Scott County jail ⁷. Viewing the payment of a fine as an admission that chiropractic was a subset of medicine, Palmer chose imprisonment as a matter of principle. He ultimately served 23 days before his fine was paid by his family, an act he framed as martyrdom for the cause of a new science ⁷, ⁹.

Palmer's arrest and incarceration acted as an immediate and powerful catalyst for political organization within the nascent profession. In response to the clear legal threat faced by Palmer and other graduates, his son, B.J. Palmer, spearheaded the formation of the Universal Chiropractors' Association (UCA) in 1906 ⁸. The primary and urgent mission of the UCA was to create a legal defense fund to protect chiropractors who were being arrested across the country on identical charges of practicing medicine illegally ⁸, ⁹. This organization became the profession's first major political and legal shield, pooling resources to hire skilled legal counsel.

The UCA's strategy was soon tested in a case that would become a cornerstone of chiropractic's legal identity. In 1907, Shegetaro Morikubo, a Palmer School graduate practicing in La Crosse, Wisconsin, was arrested on the same charge as D.D. Palmer ⁸. The UCA retained attorney Tom Morris to lead the defense. The legal strategy was groundbreaking: instead of arguing that Morikubo was practicing a legitimate form of medicine, Morris argued that chiropractic was not medicine at all. He contended it was a separate and distinct field, based on a different philosophy, science, and art ⁹. The defense relied heavily on the core tenets developed by D.D. Palmer, defining chiropractic as a practice focused on locating and correcting vertebral subluxations to remove nerve interference, a concept entirely distinct from the diagnosis and treatment of disease central to medicine ⁶. The court was persuaded by this argument, and Morikubo was acquitted. The Wisconsin v. Morikubo decision was a landmark victory, establishing the first major legal precedent that chiropractic was a separate profession ⁸. This outcome, born from Palmer's own legal troubles, provided the critical legal foundation upon which future state licensure campaigns would be built, securing a path for chiropractic to exist outside the control of organized medicine ⁹.

Philosophical schisms and institutional divergence (c. 1905-1910)

While the Morikubo verdict provided a critical legal shield against external medical opposition, the nascent chiropractic profession was simultaneously fracturing from within. This period was defined by a profound ideological conflict, known as the 'straight' versus 'mixer' debate, which was exacerbated by deep personal and professional schisms between Daniel David Palmer, his son B.J. Palmer, and influential early graduates ¹¹, ⁹. The core of the dispute concerned the very definition and scope of chiropractic practice.

Proponents of 'straight' chiropractic, a term championed by B.J. Palmer, adhered to a rigid interpretation of D.D. Palmer's foundational theory. They maintained that vertebral subluxation was the single cause of all disease and that the hand-delivered adjustment was the only valid cure ⁶. This philosophy was enshrined at the Palmer School of Chiropractic (PSC) in Davenport, which B.J. Palmer came to control after his father sold his shares following his 1906 conviction for practicing medicine without a license ⁷. B.J. proved to be a formidable organizer and promoter, refining his father’s 'bone-out-of-place' subluxation theory into a more sophisticated model of nerve interference focused on the upper cervical spine ⁵.

In opposition were the 'mixers', who argued for a broader therapeutic scope. They believed that while spinal adjustments were central, they should be supplemented, or 'mixed', with other modalities such as physiotherapy, hydrotherapy, dietetics, and stretching ¹⁰. This schism was not merely philosophical; it was intensely personal. Many early graduates, including the lawyer Willard Carver, became alienated by what they perceived as D.D. Palmer's 'erratic way of doing things' and B.J. Palmer's increasingly dogmatic and autocratic leadership of the PSC ¹¹.

This dissatisfaction led directly to institutional divergence. Willard Carver, a 1906 Palmer graduate, became a leading figure in the mixer movement. In 1906, he founded the Carver-Denny Kiropractic College in Oklahoma City, one of the first major breakaway institutions designed to compete with the Palmer school ¹⁰, ¹⁴. Carver's college and others like it explicitly taught a broader-scope curriculum, attracting students and practitioners who rejected the narrow confines of the 'straight' doctrine ¹¹. This institutional split created a permanent fault line in the profession, establishing two competing camps with different educational standards, legislative goals, and professional identities ⁹. The intense animosity between the Palmers and the 'mixer' leaders like Carver was well-documented, setting the stage for decades of internal political conflict that would shape the development of chiropractic in North America ¹⁴, ¹⁵.

D.D. Palmer's final years and legacy (1910-1913)

After his 1906 conviction for practicing medicine without a license in Scott County, Iowa, and subsequent 23-day jail sentence, D.D. Palmer's relationship with Davenport and the school he founded became increasingly strained ⁷. He spent several years in the Pacific Northwest, establishing short-lived chiropractic schools in Portland, Oregon, and continuing to refine his theories in relative isolation from the institution now firmly under the control of his son, B.J. Palmer ¹⁴. During this period, D.D. Palmer consolidated his life's work and philosophy into a single volume. In 1910, he published The Chiropractor's Adjuster: The Science, Art and Philosophy of Chiropractic, a text that served as his definitive statement on the profession he had named ⁴, ⁶. The book ardently defended his "straight" chiropractic principles against the "mixer" philosophies of former students like Willard Carver, who were incorporating other healing modalities into their practice ¹⁰, ⁹. In the text, Palmer articulated his original theory of subluxation as a structural displacement, a "bone-out-of-place" that directly impinged a nerve, a concept distinct from the more complex models of nerve interference that B.J. would later champion ⁵,. The book was D.D. Palmer’s attempt to assert his intellectual authority and legacy as the "Fountain Head" of chiropractic ¹³.

D.D. Palmer eventually returned to the Midwest, but his relationship with his son and the Palmer School of Chiropractic had deteriorated into open animosity. This conflict culminated in a notorious and tragic public incident. During a Palmer School Lyceum parade in Davenport in August 1913, D.D. Palmer marched with a contingent from the rival Carver-Denny Chiropractic College ¹¹. Accounts of the event are contentious, but it is established that a vehicle driven by B.J. Palmer struck his father during the procession ¹². Following the collision, D.D. Palmer filed a civil suit against his son, publicly accusing him of attempted patricide. B.J. and his supporters maintained that the contact was minor and accidental, an unavoidable mishap in the crowded parade environment. The incident immediately became a scandalous fixture in the profession's lore, emblematic of the deep personal and philosophical rift between father and son ⁹, ¹⁵.

On October 20, 1913, just weeks after the parade incident, Daniel David Palmer died in Los Angeles at the age of 68. The official death certificate listed typhoid fever as the cause of death, a diagnosis supported by attending physicians. However, D.D. Palmer himself, along with his allies, claimed that the injuries and subsequent decline in health were a direct result of being struck by his son’s automobile ¹³. This accusation gave rise to an enduring "myth of patricide" that has been debated by chiropractic historians for decades ¹². While no criminal charges were ever brought against B.J. Palmer concerning his father's death, the controversy left a permanent stain on his reputation and created a foundational, tragic narrative within the profession ⁹. D.D. Palmer's final years were marked by conflict and alienation, yet his 1910 book remains a primary source for his unadulterated theories, and his foundational discovery continues to define the chiropractic profession ⁶.

The 'fountainhead' and the modern era in Davenport (Post-1913)

Following the death of his father in 1913, Bartlett Joshua "B.J." Palmer assumed uncontested control of the Palmer School of Chiropractic (PSC) and embarked on a decades-long campaign to transform Davenport into the undisputed center of the chiropractic world. He aggressively marketed the institution and the city as the "Fountainhead," the one true source of pure, unadulterated chiropractic philosophy and practice ⁹. This branding was a direct countermeasure against the professional schisms that had emerged, where former students like Willard Carver founded competing institutions that sought to "mix" chiropractic with other modalities such as naturopathy ¹⁰, ¹¹. B.J. Palmer positioned his school as the defender of "straight" chiropractic, a philosophy focused exclusively on the detection and correction of vertebral subluxations.

Under B.J.'s leadership, chiropractic theory was also significantly refined. He moved beyond his father's more generalized "bone-out-of-place" concept of subluxation, developing a more complex neurological model focused on nerve interference ⁵. This model, often explained with the "foot on the hose" analogy, posited that nerve impingement disrupted the flow of innate intelligence from the brain to the body. B.J.'s research led him to concentrate almost exclusively on the upper cervical spine, specifically the atlas and axis vertebrae, as the primary site of subluxations that impacted the entire nervous system ⁵. This specific, upper-cervical focus became a hallmark of the Palmer curriculum and technique systems for decades.

The physical campus in Davenport expanded dramatically, with B.J. overseeing the construction of a large educational complex on Brady Street Hill. Simultaneously, he fortified the profession's legal standing. Building on the efforts that began after D.D. Palmer's 1906 conviction for practicing medicine without a license, B.J. became a major force in the Universal Chiropractors' Association (UCA) ⁸. The UCA provided a robust legal defense fund for the thousands of chiropractors arrested across the country on similar charges, a strategy that proved essential in winning legislative battles and establishing chiropractic as a separate and distinct profession ⁸. B.J. Palmer's long tenure, which ended with his death in 1961, cemented the Palmer School's dominance in chiropractic education and solidified the ideological divide between "straights" and "mixers" that would define internal professional politics for the rest of the century ¹⁴. The Davenport campus remains the symbolic heart of the profession, housing historical archives and representing the tangible legacy of the Palmer family's foundational work ¹³.

Sources

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