Who's Who in Source Medicine?


Peter Chappell, Co-director, Source Medicine

Leilani Ashmole van Koten, Co-director, Source Medicine

Kate Birch, Source Medicine Vaccination Specialist Advisor

Samadi van Koten, Web developer


Peter Chappell, BSc Hons. Electronics; PG Cert. Control Engineering, Cambridge; Hon Fellow of Society of Homeopaths.
Co-director, Source Medicine

Peter Chappell

I started life as a research and development engineer working in the aerospace industry (rocket engineering!) and then transferred to the business computing industry. I had three USA patents granted in my name and others by the age of 25. I carried on innovation when I became a homeopath, for example I produced the first homeopathic computer software that worked in real time in the consulting room.

I ran a homeopathic practice in London from the 1970s to the 1990s, treating people from all over the world. I also directed three clinics of alternative medicine in London at that time. I helped organise the teaching and practice of modern classical homoeopathy internationally, including setting up the Society of Homeopaths in the UK. During the 1990s, I organised training programmes with teams of homoeopaths and ran master classes and teaching clinics in many diverse countries and cultures, for example, Beirut in Lebanon, Cairo in Egypt, Honduras, Sarajevo in Bosnia, Novi Sad and Belgrade in Yugoslavia, Brno and Prague in the Czech Republic, Bucharest in Romania (including an ongoing clinical program offering treatment for free in twelve orphanages housing thousands of children), Sofia in Bulgaria, Bratislava in Slovakia, Budapest in Hungary, Malta, Alchopa, Nicaragua, Addis Ababa in Ethiopia, Zagreb and Split in Croatia, Malta, etc. By this method I set up professions of homoeopathy in countries where often it didn’t exist. Many thousands of homoeopaths have been trained and the training continues to this day.

My book Emotional Healing with Homoeopathy is based upon my experiences in many countries, and many people have become homoeopaths after reading it. It has been translated into many languages and has been in print now for 25 years.

In 2000 I discovered that my burning, overwhelming, heart-felt passion was to do something about HIV and AIDS in Africa. No AIDS drugs were reaching Africa at this point and millions were dying of AIDS. This became my sole purpose at this time and I set about achieving it. I quit my UK practice, borrowed money off my property and went to work in Ethiopia in October 2001. Then began a whole new chapter of my life, leading to the development of Source Medicine.

See History page for the rest of the story.


Leilani Ashmole van Koten, MB ChB; PG Dip. Couns.
Co-director, Source Medicine

Leilani van Koten

My life has been an exploration of health and personal growth both professionally and personally, as a journey through illness, seeking well-being, Along the way I qualified and worked as a medical doctor and a psychotherapist, and have learned Imagework, Non-Violent Communication, Reiki, EFT, Reconnective Healing and the Art of Allowing as well as learning much through parenting Samadi and Aliyyah. I live with my husband, Hamid, and our children at Bowden House, a community in Devon, England.

While always having a pervading sense of the sacredness of life, I have moved conceptually from a focus on illness and healing, through health and well-being to conscious evolution. As my desire to work with facilitating the global evolution of consciousness crystalised into a clear, specific intention, I met Peter when he moved to Bowden House in 2014. I started working with him on research and organisational development and then stepped into the Source Work, our form of lightworking, integrating my life learning and arriving in my core life purpose. What started out seemingly as an apprenticeship, with Peter teaching me about making the Resonances, deepened into a sacred partnership, working entirely collaboratively on developing and making the Resonances together. This partnership has enabled us to allow into manifestation the new Source Resonances, while in parallel developing SourceMedicine.Zone.

As well as being deeply fulfilling professionally, the use of the Source Resonances has greatly enhanced my own personal well-being and actualisation.


Background, by Peter

Meeting with Leilani became an extraordinarily important event. Up to this point I was working semi-blind with the Source and the Resonances, and was without any quality contact and deeper understanding of this Source. It rapidly became apparent that Leilani was fully equipped for the job of lightworking with Source and that the two of us together were a pre-existing sacred partnership. The previous methods I had used in working with Source in creating the Resonances were effective but there was little ability to refine and develop them. With Leilani, a direct conscious connection to Source was made and the Resonance Receiver (or the ‘cooker’ as it is called colloquially) was developed and refined significantly.

One of Leilani‘s particular organising skills is to dissect, understand and consciously reconstruct what was previously a mostly an unconscious process. By chunking it down before rebuilding, issues which previously had seemed impenetrable became understood and by these methods great progress has been made.

Previously there was insufficient integration of Source in the activities of PC technology (as it was called then) on a practical level. Now it has been integrated in what we might call a sacred, increasingly joined up, seamless organisation, from Source to delivery. The website, for example, is now an integrated part of this sacred work. What I had struggled with for 15 years since the discovery of PC1 has now became clearer and processed. So, whereas before I was clearly the instigator of this work, in Ethiopia, and soon thereafter collaborating over a long period of time with Harry van der Zee in applications in Africa and later the west, and with others in the west, yet the inner work was missing and not fully understood. Now the inner side of everything has opened up, which has also begun to allow me to separate from the more business-like activities and concentrate on this inner process with Leilani - two pretty ordinary humans blessed with doing a profoundly interesting job.


Kate Birch, RSHom(NA), CHC.
Source Medicine Vaccination Specialist Advisor

Kate Birch

Since 1985 I have been aware of the effects vaccines have in children after my son was vaccinated with DPT when he was an infant. What started as curiosity has turned into my life's work to understand infectious disease, find alternatives to vaccines, and promote homeoprophylaxis. This work has taken me around the world, and brought me face to face with children of all nations effected by the bad science of the vaccine paradigm. Through careful study and 15 years of experience in treating vaccine damage I have some understanding of what is happening. In connecting with this source work and with this team my hope is to facilitate bringing sense back into these children's lives and bodies for the sake of their generation and the health of the planet. In gratitude and service. Thank you.

She is the author of Vaccine Free Prevention and Treatment of Infectious Contagious Disease with Homeopathy (2007), The Solution ~ Homeoprophylaxis: The Vaccine Alternative (2011 and Homeopathic Therapeutics of the Diseases of the Liver and Biliary Ducts ~ The Amazing Liver: Interfacing Nature with Spirit (2015). Kate lives in Minneapolis MN.


Samadi van Koten
Web Developer

Samadi van Koten, 2015

Our techy whizz-kid and self-taught brains behind the SourceMedicine.Zone website. On hand to sort out technical glitches and train up the older generation - in between studying for school exams and playing music.