07/07/2025
Tribute to Professor Trefor Jenkins (24 July 1932 – 2 July 2025)
It is with deep respect and sadness that we mark the passing of Emeritus Professor Trefor Jenkins, a luminary in South African Human Genetics, and a dear colleague across institutional lines.
As long-serving Head of the division of Human Genetics at the University of the Witwatersrand, Prof Jenkins’ tenure overlapped substantially with that of my own time (under the late Professor Beighton’s headship of Human Genetics) at the University of Cape Town. He was, quite simply, a perfect gentleman—gracious, rigorous, and profoundly humane. Though he led a sister Division at opposite ends of the country, his work and character resonated far beyond Johannesburg, but internationally. Professor Jenkins was a pioneer: a scientist of broad and deep impact, a teacher of generations, and a fearless advocate for ethical conduct in medicine and science. His contributions to our understanding of genetic diversity in African populations, the development of diagnostic services, and the teaching of medical ethics remain foundational. But what set him apart was the way he carried this weighty work—with gentleness, humour, and a firm moral compass.
His stance during the tragic events surrounding Steve Biko's death, and his ongoing advocacy for justice in health care, serve as enduring reminders of how a scientist can also be a citizen of conscience. Many of us in the UCT Division owe a great intellectual and professional debt to Trefor—whether directly through mentorship or indirectly through the spaces he helped shape and the standards he set. The South African genetics community is richer for his contributions and poorer for his loss.
To his family, colleagues, and students—past and present—we extend our heartfelt condolences. His legacy endures not only in the annals of science, but in the lives he shaped and the ideals he championed.
Go well, Trefor. You were, truly, a good man in Africa.
Emeritus Prof Raj Ramesar
Division of Human Genetics
University of Cape Town
Photograph credit: The Lancet, Volume 365, Issue 9474, 1843