In the interwar years in Britain, a crisis of national fitness exposed by the First World War prompted the Fabian Society to propose a centralised, expert-led welfare state to manage the population from the top down. The Peckham Experiment in south-east London offered a defiant alternative, says Jennifer Okerenta.   

(Wikimedia Commons)

The Peckham Experiment was born a rejection of established medical practice by George Scott Williamson and Innes Pearse, two pathologists working at the Royal Free Hospital. Moving away from a narrow focus on the mechanics of disease, they investigated how health manifests when an organism exists in harmony with its environment. For them, health was not a state-dispensed service; it was a spontaneous by-product of a self-organising community. They choose Peckham as a stable, working class district without extremes of poverty for a community-led experiment.

While the Fabians argued public health should be provided by an elite class of state planners and doctors, Williamson and Pearse championed the social principle. They believed that by removing the paternalism of state-managed welfare, they could observe families thriving autonomously. This commitment to self-governance drew them into radical circles, with Williamson frequently speaking for the London Anarchist Group.

Ethology and the “Sight of Action”

The founders’ unorthodoxy was holistic, extending from the family unit to the soil. At a time when medical progress was measured by clinical cures and agriculture pivoted toward industrial chemicals, Williamson and Pearse became key figures in creating the Soil Association, a charity focussed on the effect of agriculture on the environment. Convinced health was impossible without quality nutrition, they established an organic farm at Bromley Common, Kent. This deliberately bypassed the industrial food system to prove human health remained dependent on land fertility.

(Wikipedia Peckham Experiment)

The ethological approach—observing behaviour in its natural setting—found physical form in the Pioneer Health Centre in Peckham, a building that Bauhaus director Walter Gropius famously dubbed an “oasis of glass in a desert of brick” in 1935.

Designed by Sir Owen Williams, this open architecture facilitated the “sight of action.” This was the hypothesis that health could be caught by observing others. The glass panels allowed biologists to observe the community without the white coat interference that defined traditional hospitals.

Charging a family subscription fee ensured the Pioneer Health Centre in Peckham remained a member-owned club, where health was nurtured through collective participation rather than top-down charity.

Collision with chemical triumphalism

This insistence on localism caused the experiment to collide with the new National Health Service (NHS) in 1948. Uncompromising critics, Williamson and Pearse famously branded it a “national sickness service.” They argued that the state’s focus on acute cures and chemical triumphalism (relying on new drugs like antibiotics) ignored the environmental roots of health.

The Ministry of Health dismissed the autonomous, fee-paying Centre as an ‘administrative irregularity.’ To a new top-down NHS built on hospital beds and pharmacy counters, a community club centred on a swimming pool simply did not compute as healthcare.

When the Centre closed in 1950, Britain abandoned a radical alternative for public health. Today, as we grapple with the limits of a purely curative system, the experiment’s core finding that health is a mutual synthesis of environment and organism feels strikingly modern. It serves as a reminder that health cannot be dispensed from a pharmacy; it must be nurtured within a community, from the ground up.

Jennifer Okerenta is a fourth-year medical student at the University of Manchester. She is a winner of a 2026 Norah Schuster Prize for her paper on which this blog is based. Her research explores the history of social biology, radical politics and the architecture of preventive medicine.

References and further reading

Armstrong, D., Political Anatomy of the Body: Medical Knowledge in Britain in the Twentieth Century. Cambridge: Cambridge University Press, 1983

Conford, P., ‘Smashed by the National Health’? A Closer Look at the Demise of the Pioneer Health Centre, Peckham. Medical History, 2016, Vol. 60, nr. 2, pp. 250-269

Conford, P., Anarchism and the welfare state: the Peckham Health Centre. History & Policy, 2024

Pearse, I. H. & Crocker, L. H., The Peckham Experiment: A study of the living structure of society. London: Allen & Unwin, 1943. Wellcome Collection.

Williamson, G. S. & Pearse, I. H., Science, Synthesis and Sanity. London: Collins, 1965. Wellcome Collection

Scientific debate can be soured by the tendency for evangelical pioneers to see any questioning as opposition bordering on evil.   Their aggressive attitude can delay innovation, a lesson perhaps for our own times and a reason for studying history, says Mike Davidson.  

Ignaz Semmelweis

My wife and I saw the production “Dr Semmelweis” at the Bristol Old Vic. At last, a chance to experience live theatre with a full audience; it also fulfilled my interest in the history of medicine. The writers, Mark Rylance and Stephen Brown, were influenced by the 1952 biography Semmelweis (1818-1865) by Louis-Ferdinand Céline, a work I am unfamiliar with.

Their play is a dramatic interpretation of the work of Ignaz Semmelweis (1818–1865) on puerperal sepsis and his failure to convince his contemporaries of the need for ward hygiene to control the disease. This was in no small part a result of his uncompromising personality and ability to alienate even his strongest supporters and allies.

Semmelweis proposed the practice of washing hands with chlorinated lime solutions in 1847 while working in Vienna General Hospital’s First Obstetrical Clinic, where doctors’ wards had three times the mortality of midwives’ wards. His observations brought him into conflict with many within the contemporary scientific and medical establishment.

The play records Semmelweis’s descent into madness, haunted by the ghosts of the women he has not saved. The ghosts are portrayed as dancers and musicians on stage and within the audience, as he recollects events. Much of the narrative takes the form of flashbacks acted out for his wife. The opportunities for engagement squandered by Semmelweis due to his lack of understanding of human nature are highlighted.

Rylance’s performance as Semmelweis was central and powerful and the cast provided strong support. I found two female performances poignant, Thalissa Teixeira, as his wife Maria, and Jackie Clune, as nurse Muller. The female characters provide a more balanced view of history than concentrating on male pioneers.

Muller is a senior midwife who helps Semmelweis with his introduction of hygiene methods and provides clinical data to support his thesis. His lack of empathy for her guilt in accidentally causing an outbreak of sepsis that contributed to her ultimate suicide speaks volumes of the single-mindedness and unforgiving attitude of Semmelweis.

There is a very pertinent observation by Rylance in an interview published in the Financial Times on 12 January 2022: “He wasn’t just a victim. He was also a very difficult person: someone who got very angry about people not understanding him and became his own worst enemy. Which maybe a lot of pioneers are — they’re people who cut through and are not the most polite or politically savvy people.”

The production at Bristol has now ended but given the enthusiastic reception it got there, it may be staged again.

I recommend the play not only for a medical history enthusiast but for anyone who wants to experience a thought-provoking performance by a talented cast, playwrights, dancers and musicians.

Mike Davidson is President of the British Society for the History of Medicine.