John Langdon Down

British physician and first person to describe Down syndrome (1828-1896)
Person human Q315940
John Langdon Down
Sydney Hodges · Public Domain · Wikimedia
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John Langdon Down

Summary

John Langdon Down is a human[1]. He was born in Torpoint[2]. He was born on November 18, 1828[3]. He died in Teddington[4]. He died on October 7, 1896[5]. He worked as a physician[6], psychiatrist[7], and neurologist[8]. He ranks in the top 0.69% of human entities by monthly Wikipedia readership (3,058 views/month, #6,935 of 1,000,298).[9]

Key Facts

  • John Langdon Down's place of birth was Torpoint[2].
  • John Langdon Down died in Teddington[4].
  • John Langdon Down was born on November 18, 1828[3].
  • John Langdon Down died on October 7, 1896[5].
  • John Langdon Down's father was Joseph Almond Down[10].
  • John Langdon Down's mother was Hannah Haydon[11].
  • John Langdon Down was married to Mary Crellin[12].
  • A child of John Langdon Down was Lilian Langdon Langdon-Down[13].
  • A child of John Langdon Down was Everleigh Langdon Langdon-Down[14].
  • A child of John Langdon Down was Percival Langdon Langdon-Down[15].
  • A child of John Langdon Down was Reginald Langdon Langdon-Down[16].
  • John Langdon Down held citizenship in United Kingdom of Great Britain and Ireland[17].
  • John Langdon Down's professions included physician[6].
  • John Langdon Down's professions included psychiatrist[7].
  • John Langdon Down worked as a neurologist[8].
  • John Langdon Down's field of work was medicine[18].
  • John Langdon Down's field of work was social medicine[19].
  • John Langdon Down was educated at Barts and The London School of Medicine and Dentistry[20].
  • John Langdon Down is recorded as male[21].
  • John Langdon Down's instance of is recorded as human[22].
  • John Langdon Down's Commons category is recorded as John Langdon Down[23].
  • John Langdon Down's family name is recorded as Down[24].
  • John Langdon Down's given name is recorded as John[25].
  • John Langdon Down's languages spoken, written or signed is recorded as English[26].
  • John Langdon Down's birth name is recorded as {'lang': 'en', 'text': 'John Langdon Haydon Down'}[27].

Body

Origins and Family

Born in Torpoint[2], John Langdon Down… he was born on November 18, 1828[3]. His father was Joseph Almond Down[10]. His mother was Hannah Haydon[11].

Education

John Langdon Down's education included a stint at Barts and The London School of Medicine and Dentistry[20].

Career and Affiliations

Recorded occupations include physician[6], psychiatrist[7], and neurologist[8]. Fields of work include medicine[18], a field of study[28] and social medicine[19], a medical specialty[29].

Personal Life

Among John Langdon Down's spouses was Mary Crellin[12]. Children include Lilian Langdon Langdon-Down[13]; Everleigh Langdon Langdon-Down[14]; Percival Langdon Langdon-Down[15], 1868–1925[30]; and Reginald Langdon Langdon-Down[16], 1866–1955[31].

Death and Burial

John Langdon Down died on October 7, 1896[5]. He passed away in Teddington[4].

Works and Contributions

Things named for John Langdon Down include Down syndrome[32], a disability[33].

Why It Matters

John Langdon Down ranks in the top 0.69% of human entities by monthly Wikipedia readership (3,058 views/month, #6,935 of 1,000,298).[9] He has Wikipedia articles in 24 language editions, a strong signal of global cultural recognition.[34] He is known by 31 alternative names across languages and contexts.[35]

Entities named for him include Down syndrome[32], a disability[33].

FAQs

Where was John Langdon Down born?

John Langdon Down was born in Torpoint[2].

Where did John Langdon Down die?

John Langdon Down died in Teddington[4].

Who were John Langdon Down's parents?

John Langdon Down's father was Joseph Almond Down[10]. John Langdon Down's mother was Hannah Haydon[11].

Who was John Langdon Down married to?

John Langdon Down's spouses include Mary Crellin[12].

What did John Langdon Down do for work?

John Langdon Down worked as physician[6], psychiatrist[7], and neurologist[8].

Where did John Langdon Down go to school?

John Langdon Down was educated at Barts and The London School of Medicine and Dentistry[20].

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [4] . wikidata.org.
  3. [21] . Czech National Authority Database. Retrieved . wikidata.org.
  4. [10] . Q75653886. wikidata.org.
  5. [11] . wikidata.org.
  6. [12] . Q75653886. wikidata.org.
  7. [17] . wikidata.org.
  8. [22] . wikidata.org.
  9. [13] . Q75653886. wikidata.org.
  10. [14] . Q75653886. wikidata.org.
  11. [15] . Q75653886. wikidata.org.
  12. [16] . Q75653886. wikidata.org.
  13. [20] . wikidata.org.
  14. [18] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [19] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [6] . wikidata.org.
  17. [7] . wikidata.org.
  18. [8] . wikidata.org.
  19. [23] . wikidata.org.
  20. [3] . Munk's Roll. wikidata.org.
  21. [5] . Munk's Roll. wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.
  24. [26] . Czech National Authority Database. Retrieved . wikidata.org.
  25. [27] . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [32] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [30] . Wikidata. wikidata.org. → on this site
  2. [31] . Wikidata. wikidata.org. → on this site
  3. [28] . Wikidata. wikidata.org. → on this site
  4. [29] . Wikidata. wikidata.org. → on this site
  5. [33] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [9] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [34] . Wikidata sitelinks. wikidata.org.
  3. [35] . Wikidata aliases. wikidata.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). John Langdon Down. Retrieved April 10, 2026, from https://4ort.xyz/entity/john-langdon-down
MLA “John Langdon Down.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/john-langdon-down.
BibTeX @misc{4ortxyz_john-langdon-down_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{John Langdon Down}}, year = {2026}, url = {https://4ort.xyz/entity/john-langdon-down}, note = {Accessed: 2026-04-10}}
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Edit History

Rolling log of changes to this entity's Wikidata record. Values shown reflect the current state of each edited property — follow the history link to see the precise diff for any edit.

  1. 4d ago · Quesotiotyo · 2026-05-20 view diff on Wikidata ↗
    P14397 1371
    "/* wbcreateclaim-create:1| */ [[Property:P14397]]: 1371, [[:toollabs:quickstatements/#/batch/258229|batch #258229]]"
  2. 11d ago · Epìdosis · 2026-05-12 view diff on Wikidata ↗
    Place of birth Torpoint
    Family name Down
    Given name John
    Field of work
    + 19 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/30848|batch #30848]]: match CERL IDs on the basis of GND (5)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.