William Alexander Hammond

William Alexander Hammond: The Surgeon General They Destroyed

On 4 May 1863, with the Union armies bleeding men faster than any war in American history, the Surgeon General of the United States struck a drug off the supply tables. Calomel — mercurous chloride — was the workhorse purgative of nineteenth-century medicine, and William Alexander Hammond had concluded it was neither safe nor effective. He was right, as medicine would later confirm. It cost him his job, his rank and his reputation, and it took Congress fifteen years to admit it.

The Army Doctor Who Kept Reading

Hammond was born on 28 August 1828 in Annapolis, Maryland, and grew up in Harrisburg, Pennsylvania. He took his M.D. from New York University in 1848, at twenty. After an internship and a short spell in private practice he joined the United States Army as an assistant surgeon and stayed from 1849 to 1860, posted to the far West — New Mexico, California — and through the Sioux Wars.

Frontier surgeons were not, as a class, expected to produce science. Hammond did. He experimented on nutrition and the effects of drugs on the body, and he used himself as the subject: "The experiments illustrative of the effects of these substances were performed upon myself," he wrote in 1856, "and were conducted with all care." *The Physiological Effects of Alcohol and Tobacco upon the Human System* appeared that year; in 1857 the American Medical Association gave a prize to his research on nutritive value. In 1859 he published work with Silas Weir Mitchell on poisons acting on the nervous system — the beginning of the most consequential intellectual partnership in early American neurology — and was elected to the American Philosophical Society. On sick leave in Europe he toured military hospitals and took notes.

In 1860 he left the Army for a chair in anatomy and physiology at the University of Maryland School of Medicine in Baltimore.

Lincoln's Thirty-Four-Year-Old

The war pulled him back. Hammond returned to the Army on 28 May 1861 and was sent to West Virginia, where he worked with General William Starke Rosecrans and met a medical officer named Jonathan Letterman. When Secretary of War Edwin M. Stanton removed Surgeon General Clement Finley, Lincoln appointed Hammond in his place on 25 April 1862, with the rank of brigadier general. He was thirty-four, and he had inherited a medical department wholly unequal to industrial-scale slaughter.

Building the Machine

What followed was one of the fastest institutional overhauls in American public administration. Hammond raised the entrance standards for the Army Medical Corps and promoted on competence rather than seniority. He built hospitals in quantity and insisted on ventilation as a design principle, culminating in Satterlee Hospital with 4,500 beds. He centralised the issue of medicines, pushed for a permanent standing military medical corps rather than a wartime improvisation, and set a minimum recruitment age of twenty.

He founded the Army Medical Museum in 1862 — today the National Museum of Health and Medicine — installing John H. Brinton to run it, and the record-keeping habits he instituted helped seed what became the National Library of Medicine. And he backed Letterman, promoting him and championing his ambulance corps, which Hammond had rigorously tested before it was adopted across the Army. That system is the direct ancestor of modern battlefield casualty evacuation and of civilian emergency medical services.

Mortality fell sharply on his watch.

The Calomel Rebellion

Then came the calomel order. Striking a mercury compound off the Army's supply table was an evidence-based decision taken by a man who had spent a decade doing experimental pharmacology. To the average regimental surgeon it was something else: the confiscation of his main therapeutic tool by a young administrator in Washington, with nothing offered in its place, and an intrusion into the sacred private judgement of the practising physician. The profession revolted.

Hammond was abrasive, certain and unwilling to flatter, and his relations with Stanton were already poisonous. On 3 September 1863 he was despatched on a protracted "inspection tour" of the South — removal disguised as duty. Joseph Barnes, a Stanton confidant, took over as acting Surgeon General.

Court-Martial

Hammond demanded either reinstatement or a trial. He got the trial. The charges concerned "irregularities" in the purchase of medical furniture; the evidence against him was later shown to rest on false data originating with Stanton. On 18 August 1864 he was dismissed from the Army in disgrace.

The Second Career

Most men would have ended there. Hammond moved to New York with the help of friends and invented himself a second profession. He became professor of nervous and mental diseases at Bellevue Hospital Medical College in 1867 and at New York University in 1874, taught at the University of Vermont, and co-founded both the Post Graduate Medical School of New York and, in 1868, the *Archives of Scientific and Practical Medicine*.

In the 1870s he became the first American physician to confine his practice entirely to diseases of the nervous system and the mind — the moment American neurology became a specialty rather than a sideline. He experimented early with lithium for mania. His *Treatise on Diseases of the Nervous System* (1871) was among the first comprehensive American neurology textbooks; in it he described the writhing, uncontrollable movement disorder he named athetosis — "inability to retain the fingers and toes in any position" — still known as Hammond's disease. In 1874 he was a principal founder of the American Neurological Association alongside Weir Mitchell.

He also wrote *On Wakefulness* (1866) and *Sleep and Its Derangements* (1869), turned his scepticism on the séance in *The Physics and Physiology of Spiritualism* (1871) and on miraculous starvation in *Fasting Girls* (1879), attributing both to suggestion, sleight of hand, hypnosis and hysteria. In 1882 he published one of the earliest American medical accounts of transgender practice among Pueblo peoples. He wrote novels too, some with his daughter Clara Lanza.

Why William Is Called a Genius

The quality in question is not brilliance of insight so much as an unusual willingness to reason from evidence and then act on the conclusion regardless of cost. Hammond experimented on himself, tested Letterman's ambulance system before adopting it, and removed calomel because the data did not support it — at a time when American therapeutics ran largely on tradition and authority. That is a scientific temperament applied inside a bureaucracy at war, and the mortality figures suggest it worked.

The second claim is range. A man who reorganises a national medical department, founds a museum and seeds a national library, then loses everything and proceeds to found an entire medical specialty, its professional association and one of its first textbooks, is operating well outside normal professional capacity.

Who used the word? His contemporaries mostly used harsher ones — arrogant, imperious, impossible. The historical verdict is warmer: his court-martial is now widely regarded as politically motivated and unjust.

The counter-case is that Hammond's temperament was not incidental to his fall but central to it. A more emollient administrator might have carried the profession with him on calomel and kept the office. He was also, in places, a man of his century's prejudices, and some of his neurological theorising has not aged well. Call him a genius of institutional reform and evidence-based nerve, not of scientific discovery.

Legacy

In 1878 Congress reversed the verdict and Hammond was restored to the Army with the grade of brigadier general — without pay or allowances, an exoneration that cost the government nothing. He returned to Washington in 1888 and founded a hospital for nervous and mental diseases there. He died on 5 January 1900 of heart failure and was buried with military honours at Arlington. His son Graeme became a neurologist and an Olympic fencer. Three animals carry his name from his frontier years — Hammond's flycatcher, garter snake and spadefoot toad — and every battlefield ambulance carries something of him too.

Achievements

• Held posts at University of Vermont, New York University and University of Maryland School of Medicine