Winifred Brenchley

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Brenchley working in her laboratory at Rothamsted Experimental Station

Winifred Elsie Brenchley OBE, DSc (Lond), FLS, FRES (1883 – 1953), an agricultural botanis, was the first woman in the UK to break into the male dominated sphere of agricultural science.[1] She has been described as "perhaps Britain's leading authority on weeds in the early twentieth century".[2]

Early life and education[edit]

Winifred Brenchley was born in London on 10 August 1883 to Elizabeth Beckett and William Brenchley, a schoolmaster who was once Mayor of Camberwell. Measles in childhood left her partially deaf. She was educated at James Allen's Girls' School in Dulwich, where one of her teachers was the well known botanist Dr Lilian Clarke.[3]

She attended Swanley Horticultural College for two years, completing her course in 1903. At the school, the new science-based study provided an alternative to the earlier emphasis on practical apprenticeship training, thus opening up male dominated horticultural trades to women. By 1903 the college was only taking women students, with the aim of providing suitable occupations for unmarried women. (There was also a growing demand for horticulturalists and agriculturalists in the British coloniesm and it was felt that women were suited to this role.) Brenchley won the Royal Horticultural Society Silver Gilt medal but gave up gardening to study botany.[4] She received her BSc from University College London in 1905, where she studied under Francis Wall Oliver. She was awarded a Gilchrist Scholarship for postgraduate study for 1906-7 and was awarded a DSc in 1911. She became a Fellow of University College in 1914.


The Gilchrist Scholarship took her to Rothamsted Experimental Station in Harpenden. She was the first woman to work there in the 60 years of the laboratories' existence, and it was admitted that she was appointed 'because the funds available would not have attracted a suitable man'[5] The quality of her work was soon apparent and after a year she became a permanent employee as head of the Botany Department, a post she held until her retirement at 65.

Early on at Rothamsted she demonstrated her technical skills, improving the technique for growing plants in water culture and coming close to discovering the essential role of copper and zinc in plant nutrition, as detailed in her book Inorganic Plant Poisons and Stimulents (1914, revised 1927). Katherine Warington's discovery of boron's role as a micronutrient in 1923[6] and the subsequent investigations into the effects of boron is perhaps the best known work from her laboratory.[7] Her other chief interest was in the ecology of weeds and in Weeds of Farmland (1920) she produced the first comprehensive scientific study of weeds in the UK. Her work on the permanent Park Grass plots at Rothamsted resulted in another book Manuring of Grass Land for Hay (1924) describing how lime and fertilizers affect the botanical composition of grasslands.

Brenchley was elected a Fellow of the Linnean Society in 1910. In 1920 she became a Fellow of the Royal Entomological Society. She was closely associated with A D Imms with whom she collected in the field. Her main entomological interest was in the Lepidoptera.[8] She was awarded the OBE in 1948, the year she retired.

Later life[edit]

In retirement Brenchley returned to her gardening. She was also bringing together the vast quantities of unpublished material in her research notebooks, but she suffered a severe stroke and died in Harpenden on 27 October 1953.


  • Weeds of Farm Land. London, Longmans Green, 1920
  • Manuring of Grass Land for Hay London, Longmans, Green, 1924
  • Inorganic Plant Poisons and Stimulents 2nd ed. Cambridge, Cambridge University Press, 1927
  • Suppression of Weeds by Fertilizers and Chemicals (with HC Long) London, Crosby Lockwood, 1949
  • 52 scientific papers, many in the Annals of Botany. A bound volume of the collection is held at Rothamsted Library.


  1. ^ D.S. Jenkinson, "Brenchley, Winifred Elsie (1883-1953)", Oxford Dictionary of National Biography, Oxford University Press, 2004. Accessed 7 Aug 2012
  2. ^ Clinton L. Evans The War on Weeds in the Prairie West: An Environmental History Calgary, Univ. of Calgary Press, 2002 p.219
  3. ^ Amanda Thomas "Dr.Winifred Brenchley, O.B.E. (1883-1953)", Accessed 29 July 2013.
  4. ^ Donald L. Opitz (2013) 'A Triumph of Brains over Brute': Women and Science at the Horticultural College, Swanley, 1890-1910. Isis 104(1) pp 30-62
  5. ^ Sir E J Russell 'A History of Agricultural Science in Great Britain 1620-1954' London, Allen & Unwin, 1966 p.235
  6. ^ Warington, K. (1923) "The effect of boric acid and borax on the broad bean and certain other plants". Annals of Botany 37 pp. 629-672
  7. ^ (1948) 'Botany at Rothamsted: Dr. Winifred Brenchley' Nature 162 p. 727
  8. ^ The Remarks (on Fellows who have died in the year 1953) Proceedings of the Royal Entomological Society C 18 p.79

Further reading[edit]

  • Dr. Winifred Brenchley. Times 28 October 1953: the Times Digital Archive. Web. 29 July 2013
  • Haines, C. M. C. & Stevens, H. M.International women in science: a biographical dictionary to 1950. Santa Barbara, ABC-CLIO, 2001

External links[edit]