Marguerite Henry (scientist)
Marguerite Henry (scientist)
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Marguerite Henry (scientist)

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Marguerite Henry (scientist)

Marguerite Henry (12 November 1895 – 9 December 1982) was an Australian zoologist known for her research on freshwater crustaceans; she was active in the early 20th century. Henry's work contributed to the taxonomy and ecology of Australia's freshwater entomostracans, describing dozens of new species and establishing a new genus of copepods, Gladioferens. Her research, supported by the Australian government and the Linnean Society of New South Wales, focused on cladocerans, copepods, ostracodes, and phyllopods, with her findings published in a series of detailed monographs between 1919 and 1924.

Henry was among the first women in Australia to undertake formal zoological research, earning a Bachelor of Science in zoology from the University of Sydney in 1916. She contributed to understanding parasitic nematodes' life cycles before shifting her focus to freshwater crustaceans. Her scientific career ended following her marriage in 1924, after which she disappeared from the academic world.

Henry was born in 1886 in Sydney, Australia. Known as Madge at school, she began her education at MLC School in 1907 at the age of 11. In her final year at MLC, she was awarded the 1913 Speech Night prizes for Senior French and Senior Botany Science Diagrams. She achieved honors in English and Botany in the Leaving Certificate and won a University Exhibition scholarship to the University of Sydney.

Henry pursued higher education and enrolled at the University of Sydney, where she studied zoology. She graduated with a Bachelor of Science in Zoology and Botany degree in 1917, focusing her studies on parasitology and marine biology. She focused on parasitic nematodes for her early research projects, which was an emerging field at the time.

After completing her studies at the University of Sydney, Henry embarked on an academic career centred on parasitology and marine biology. She started as a lecturer at the university. Henry's research focused primarily on parasitic nematodes, particularly those affecting native Australian fauna. Her work helped to expand the understanding of host-parasite relationships and the ecological roles of these organisms. Among her notable achievements was the identification and documentation of several new nematode species, which garnered her recognition within the scientific community.

An article in the Sydney Morning Herald on 14 February 1917, titled "Girl Scientists", reported that two outstanding women graduates of the University of Sydney, Miss Marguerite Henry from the Public Health Department and Miss Eleanor Chase, both Bachelor of Science graduates, spent the beginning of the year engaged in an unusual occupation for women. They were dissecting March flies along the Manning River at Kew, near Taree, with Miss Chase assisting Miss Henry in the work.

Henry later worked as an assistant zoologist for a special committee of the Commonwealth Advisory Council of Science and Industry, focusing on the life history of the nematode Onchocerca gibsoni, a parasite of cattle. This research took place at an experimental station in Kendall, located on the mid-north coast of New South Wales, with off-season work carried out at the university’s zoological laboratory. Over the course of three years, the findings were published in the 1920 Proceedings of the Linnean Society with descriptions of new species.

From 1919 to 1924, Henry also conducted research on freshwater entomostracans (crustaceans) from Australia and New Zealand. During this time, she identified seven species in the copepod subclass and the calanoid genus Gladioferens (published in the Journal of the Royal Society of New South Wales in 1919). Additionally, she described twelve new species of cladocerans, eight new ostracodes, and six new phyllopods.

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