C. T. Onions was born in Edgbaston, Birmingham, the eldest son of Ralph John Onions and Harriet, daughter of locksmith John Talbut. The Onions family were traditionally bellows-makers, but Ralph Onions was a designer and embosser in metal. Charles Onions said he was "the first not to make (his) living by using (his) hands". The name "Onions" derives from the Welsh "Einion".[1][2]
Onions early came under the influence of A. J. Smith, the headmaster of the King Edward VI Camp Hill School, where Onions received his first contact with lexicography.[1] He obtained a London BA in 1892 and an MA in 1895, both while attending Mason College (which later became the University of Birmingham).[3]
James Murray invited Onions to join the staff of the Oxford English Dictionary (OED) at Oxford in 1895, and in 1914 he began independent editorial work with his own assistants.[4] His Shakespeare Glossary was published in 1911; he co-edited Shakespeare's England: an account of the life and manners of his age (2 volumes; 1916) and, in 1933, he co-edited the OED Supplement with William Craigie. Following the death of William Little in 1922, he assumed the editorship of the Shorter Oxford English Dictionary.
In 1907 he married Angela (1883–1941), daughter of Rev. Arthur Blythman, rector of Shenington, and they had seven sons and three daughters. Late in life, two of the children described their father as "a strict and distant figure whose primary relationship was with the Dictionary rather than with them." During World War I, Onions served in British naval intelligence where his knowledge of German proved a significant asset. For much of his life, Onions had a stutter.[1][5]
Anne Onions, one of his daughters, worked for many years in the Earth Sciences department at the University of Oxford as the departmental secretary and financial administrator.[6]
^Brief Lives, Paul Johnson, Arrow Books, 2011, p. 216
^"C. T. Onions," Oxford English Dictionary website: "In 1914, he was appointed as the fourth editor and was responsible in that capacity for the sections Su-Sz, Wh-Working, and X, Y, Z. Onions enjoyed saying that he contributed the final entry to the Dictionary – a cross-reference Zyxt, which since it was 'the last word', was later made the name of a soap."
^K. M. Elisabeth Murray, Caught in the Web of Words: James A. H. Murray and the Oxford English Dictionary (New Haven: Yale University Press, 1977), 281.
^Sarah Ogilvie, The Dictionary People: The Unsung Heroes Who Created the Oxford English Dictionary (New York: Alfred A. Knopf, 2023), 70.
^Vincent, E.A. (1994). Geology and Mineralogy at Oxford 1860–1986: History and Reminiscence. Oxford (Dept. of Earth Sciences). pp. 1–245.