Bachelor of Science in Mathematics, St. Lawrence University, Canton, New York, 1952. Doctor of Philosophy in Physics, Johns Hopkins University, 1958. Diploma in Theology with distinction, Joint Board Diploma in Theology, Southern Africa, 1990.
BTh with honors, University South Africa, 1997.
Research assistant Brookhaven (New York ) National Laboratory, 1952-1958. Assistant professor Bryn Mawr (Pennsylvania) College, 1958. Member Film Production Physical Sciences Study Committee, Massachusetts, 1958.
Research associate Atomic Energy Research Establishment, Harwell, England, 1958-1960. Lecturer research University Witwatersrand, Johannesburg, 1960-1966. Medical physicist Johannesburg/Hillbrow Hospitals, since 1967, retired, since 2001.
Examiner South African College Medicine, 1998. Honorary medical physicist Johannesburg Hospital department medical physics, since 2001.
Editor newspaper Johannesburg Diocese Church of Province of Southern Africa, 1993-1997, church warden, parish councillor, member diocesan council, diocesan synod, provincial synod. Member American Association for the Advancement of Science, South African Society Nuclear Medicine (secretary-treasurer 1974-1978), South African Institute Physics, American Physical Society, American Association Physicsts in Medicine, South African Association Physicists in Medicine and Biology (council member 1981-1984), South African Radiation Protection Society (chairperson 1998-2000, executive committee 2000-2001), South African Radiation Protection Coordinating Body (chairperson 1999-2000).
Married Edward Cyril Humphrey Silk, October 4, 1959. Children: John Carl Vincent, Roland Henry Luke, Carol Anne Marie.