Background
Jenkins was born in Blaenclydach, Glamorgan, the son of an Aberaeron-born collier but, as a consequence of illness, spent most of his childhood with an aunt and uncle in Penrhyn-coch, Aberystwyth, Ceredigion.
Jenkins was born in Blaenclydach, Glamorgan, the son of an Aberaeron-born collier but, as a consequence of illness, spent most of his childhood with an aunt and uncle in Penrhyn-coch, Aberystwyth, Ceredigion.
He was educated at Ardwyn Grammar School, Aberystwyth. And the University College of Wales, Aberystwyth, graduating Bachelor with Honours in Welsh Literature, 1936, and Master of Arts in 1948. Doctor of Letters Wales was conferred on him.
In 1979 an Honorary He was employed at the National Library of Wales in 1939 as an assistant in the Department of Manuscripts. Conscripted into the Army, he served during World World War II as a major in north-western Europe, "taking part in the liberation of Paris and the push into Germany and Poland, where he was among the first British soldiers to reach the concentration camps". He resumed his career at the National Library, becoming an Assistant Keeper in the Department of Printed Books from 1949 to 1957.
He was later appointed Keeper, 1957–1962, Senior Keeper, 1962-1969 and, finally, Librarian, 1969–1979.
He was the editor of the Journal of the Welsh Bibliographical Society between 1964 and 1979, and editor of the National Library of Wales Journal 1968-1979. Jenkins was the General Commissioner of Income Tax 1968–1987 and the chairman of the Welsh Books Council from 1974 until 1980.
Jenkins received a Commander of the Order of the British Empire in 1977. His history of the National Library, A Refuge in Peace and War, was written over a 20-year period.
He died, aged 89, in Aberystwyth on 6 March 2002.