Thereza Dillwyn Llewelyn

Thereza Mary Dillwyn Llewelyn

Thereza Mary Dillwyn Llewelyn photographed by her father, John Dillwyn Llewelyn, in the 1850s.
Born Thereza Mary Dillwyn Llewelyn
1834
Penllergaer, Wales
Died February 1926
Basset Down House, Wroughton, Wiltshire, England
Spouse(s) Nevil Story Maskelyne
Children Mary Story Maskelyne, Thereza Story Maskelyne
Parent(s) John Dillwyn Llewelyn, Emma Thomasina Llewelyn (née Talbot)
Thereza Dillwyn Llewelyn wearing a Bernese (Swiss) Peasant dress, taken by her father, John Dillwyn Llewelyn.

Thereza Dillwyn Llewelyn (1834 – February 1926) was a Welsh astronomer and pioneer in scientific photography.

Biography

The eldest of six children, Llewelyn was born to photographer and botanist John Dillwyn Llewelyn and Emma Thomasina Talbot at Penllergare House in Glamorganshire.[1][2] Along with her parents, her extended family were active in the fields of science in photography, including her mother's cousin the photographer Henry Fox Talbotand her aunt, Mary Dillwyn, one of earliest female photographers in Wales.[3] Llewelyn developed an interest in photography and astronomy, although both were uncommon endeavours for women in the Victorian era.[4][5]

Llewelyn married Nevil Story-Maskelyne, a professor of mineralogy at Oxford University, on 29 June 1858. Through him, she began a correspondence with Charles Darwin.[6] Together they had two daughters: Mary Arnold-Forster, wife of H. O. Arnold-Forster, and Thereza Rucker, wife of Arthur William Rucker.[2]

Scientific work and photography

Due to Llewelyn's interest in astronomy, her father constructed an equatorial observatory at Penllergare Valley Woods for her sixteenth birthday.[3][7][8] The construction of the observatory was a family affair, as Llewelyn described the event in an 1851 letter to her father:

I laid the foundation stone of the observatory today, July 7th. When Grandpa and Grandmama were here on Saturday we told them about it and they were so very kind as to come over here today and to see the first stone laid; so we went in procession to the place; they had got some stone already and after I had laid the first stone [my younger sisters] Emma laid the second and Elinor the third, which she was very much delighted to do.[8]

Llewelyn collaborated with her father in a number of astrophotographic experiments, including the production of some of the earliest photographs of the moon in the mid-1850s.[9] She later recalled how "as moonlight requires much longer exposure, it was my business to keep the telescope moving steadily as there was no clockwork action."[8] They also developed a means to photograph snow crystals.[10]

Collaboration between Llewelyn and her father also extended to meteorology, as they contributed to the maintenance and monitoring of the British Association's volunteer weather stations. Llewelyn managed the meteorological records and hoped to present her observations in person at a meeting of the Association. However, her father did not allow her to attend.[3]

One of John Dillwyn Llewelyn's photographs of his daughter, taken around 1854, has a photogram of ferns as a vignette border rather than the lace, ink and watercolour, or papercut borders that were common at the time.[11][12] Llewelyn adopted this decorative method for at least one of her photographs of her sister, Elinor.[13]

In addition to photography, Llewelyn compiled a herbarium and wrote a report that was read at the Linnean Society in 1857.[14]

Llewelyn may have observed Donati's Comet in 1858 before it was officially announced by the Italian astronomer.[8]

Following her marriage to Maskelyne, the two collaborated on experiments in chemistry and photography.[15]

In 1874, Llewelyn corresponded with Charles Darwin in the pages of Nature about her observations of birds biting flowers to eat nectar.[16]

Legacy and archives

In 2012, the British Library acquired the Dillwyn Llewelyn/Story Maskelyne photographic archive,[4] which includes a selection of Thereza's journals, memoirs, and photographs.[17]

References

  1. ↑ "Theresa Mary DILLWYN-LLEWELLYN". Wyndhammarsh.co.uk. Retrieved 4 March 2016.
  2. 1 2 "Theresa Mary Dillwyn-Llewelyn". geni_family_tree. Retrieved 4 March 2016.
  3. 1 2 3 Brück, Mary T. (2009). Women in Early British and Irish Astronomy: Stars and Satellites. Dordrecht: Springer. pp. 115–123. Bibcode:2009webi.book.....B. ISBN 978-90-481-2472-5. doi:10.1007/978-90-481-2473-2.
  4. 1 2 "Exclusive: British Library secures Dillwyn Llewelyn/Story-Maskelyne photographic archive". britishphotohistory.ning.com. Retrieved 4 March 2016.
  5. ↑ Morris, Richard (2002). "Thoughts on the Mary Dillwyn Album". National Library of Wales Journal. Aberystwyth, Wales: National Library of Wales. 32 (4): 471–477. Retrieved 4 March 2016. See pages 474–476.
  6. ↑ "CREW Blog: The Dillwyn Day: Science, Culture, Society". crewswansea.blogspot.co.uk. Retrieved 4 March 2016.
  7. ↑ penllergare. "Deal to breathe new life into historic observatory". Penllergare Valley Woods. Retrieved 4 March 2016.
  8. 1 2 3 4 Birks, John L. (2005). "The Penllergare Observatory". The Antiquarian Astronomer. Society for the History of Astronomy. 2: 3–8. Bibcode:2005AntAs...2....3B. Retrieved 4 November 2015.
  9. ↑ Joyner, Paul (1997). Artists in Wales c.1740-c.1851. National Library of Wales. p. 75. ISBN 978-1862250031.
  10. ↑ "The Welsh sheriff who pioneered photography". Telegraph.co.uk. Retrieved 4 March 2016.
  11. ↑ "Anna Page Photography: Personal Project; In depth analysis; Thereza Dillwyn Llewelyn with Her Microscope". annapagesphotography.blogspot.co.uk. Retrieved 4 March 2016.
  12. ↑ Thereza Dillwyn Llewelyn with Her Microscope, 1 January 1854, retrieved 4 March 2016
  13. ↑ "Photograph of Elinor Dillwyn Llewelyn by her sister Thereza Dillwyn...". Getty Images. Retrieved 4 March 2016.
  14. ↑ Sheffield, Suzanne Le-May (2013-09-05). Revealing New Worlds: Three Victorian Women Naturalists. Routledge. ISBN 9781134698462.
  15. ↑ Anninger, Anne; Mellby, Julie; Library, Houghton (1999). Salts of silver, toned with gold: the Harrison D. Horblit collection of early photography. Houghton Library, Harvard University. p. 18. ISBN 9780914630227.
  16. ↑ Darwin, Charles (2017-01-05). Darwin and Women: A Selection of Letters. Cambridge University Press. ISBN 9781108138697.
  17. ↑ "Home – Dillwyn". Swansea University. Retrieved 4 March 2016.
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