# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/kathleen-lonsdale
# Generated: 2026-08-15T01:53:29.906Z

schema: https://schema.org/Person
url: "https://fame.am/person/kathleen-lonsdale"
name: "Kathleen Lonsdale"
slug: "kathleen-lonsdale"
description: "Dame Kathleen Lonsdale was an Irish crystallographer, pacifist, and prison reform activist. She proved, in 1929, that the benzene ring is flat by using X-ray diffraction methods to elucidate the structure of hexamethylbenzene. She was the first to use Fourier spectral methods while solving the structure of hexachlorobenzene in 1931. During her career she attained several firsts for female scientists, including being one of the first two women elected a Fellow of the Royal Society (FRS) in 1945, first female professor at University College London, first woman president of the International Union of Crystallography, and first woman president of the British Association for the Advancement of Science."
tagline: "Irish crystallographer (1903-1971)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Kathleen_Yardley_Lonsdale_(1903-1971).jpg?width=1200"
gender: "female"
country:
  name: "United Kingdom"
  isoCode: "GB"
birthDate: "1903-01-28"
deathDate: "1971-04-01"
livingStatus: "DECEASED"
scores:
  popularity:           52.32
  momentum:             0
  historical:           22.32253866666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  50
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
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    title: "Wikiquote"
    type:  "WEBSITE"
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    title: "Катлийн Лонсдейл"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdaleová"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
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    title: "Kathleen Lonsdale"
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    title: "Kathleen Lonsdale"
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    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
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    title: "Kathleen Lonsdale"
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    title: "Քեթլին Լոնսդեյլ"
    type:  "WIKIPEDIA"
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    title: "Kathleen Lonsdale"
    type:  "WIKIPEDIA"
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    title: "キャスリーン・ロンズデール"
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    title: "კეტლინ ლონდსდეილი"
    type:  "WIKIPEDIA"
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    title: "캐슬린 론즈데일"
    type:  "WIKIPEDIA"
  - url: "https://mg.wikipedia.org/wiki/Kathleen_Lonsdale"
    title: "Kathleen Lonsdale"
    type:  "WIKIPEDIA"
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    title: "കാതലിൻ ലോൺസ്ഡെയിൽ"
    type:  "WIKIPEDIA"
  - url: "https://es.wikiquote.org/wiki/Kathleen_Lonsdale"
    title: "Wikiquote"
    type:  "WEBSITE"
  - url: "https://www.wikidata.org/wiki/Q7513"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump