John Gaddum

British pharmacologist (1900–1965)
Person human Q901919
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Summary

John Gaddum was born on March 31, 1900[1]. He died on June 30, 1965[2], in Cambridge[3]. He worked as a pharmacologist[4], university teacher[5], and physiologist[6]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (74 views/month, #7,295 of 1,000,298).[7]

Key Facts

  • Father: Henry Edwin Gaddum[8]
  • Mother: Phyllis Mary Barratt[9]
  • Spouse: Iris Mary Harmer[10]
  • Child: Susan M. Gaddum[11], Ann R. Gaddum[12], Phyllis L. Gaddum[13]
  • Country of citizenship: United Kingdom of Great Britain and Ireland[14]
  • Field of work: pharmacology[15]
  • Employer: Cairo University[16], University of Edinburgh[17]
  • Educated at: Trinity College[18], Rugby School[19]
  • Award received: Fellow of the Royal Society[20], Fellow of the Royal Society of Edinburgh[21], Knight Bachelor[22]
  • Member of: Royal Society[23], German Academy of Sciences Leopoldina[24], Royal Society of Edinburgh[25]
  • Sex or gender: male[26]
  • Commons category: John Gaddum[27]
  • Honorific prefix: Sir[28]
  • Academic degree: doctorate[29]
  • Family name: Gaddum[30]
  • Given name: John[31]
  • Languages spoken, written or signed: English[32]

Why It Matters

John Gaddum has Wikipedia articles in 6 language editions, a strong signal of global cultural recognition.[33] He is known by 11 alternative names across languages and contexts.[34]

FAQs

Where did John Gaddum die?

John Gaddum died in Cambridge[3].

Who were John Gaddum's parents?

John Gaddum's father was Henry Edwin Gaddum[8]. John Gaddum's mother was Phyllis Mary Barratt[9].

Who was John Gaddum married to?

John Gaddum's spouses include Iris Mary Harmer[10].

What did John Gaddum do for work?

John Gaddum worked as a pharmacologist[4], university teacher[5], and physiologist[6].

Where did John Gaddum go to school?

John Gaddum was educated at Trinity College[18] and Rugby School[19].

What awards did John Gaddum receive?

Honors received include Fellow of the Royal Society[20], Fellow of the Royal Society of Edinburgh[21], and Knight Bachelor[22].

References

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

Direct Wikidata claims

  1. [3] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  2. [26] ↑ . The Peerage. Retrieved . wikidata.org.
  3. [8] ↑ . The Peerage. wikidata.org.
  4. [9] ↑ . The Peerage. wikidata.org.
  5. [10] ↑ . Retrieved . wikidata.org.
  6. [14] ↑ . wikidata.org.
  7. [11] ↑ . The Peerage. wikidata.org.
  8. [12] ↑ . The Peerage. wikidata.org.
  9. [13] ↑ . The Peerage. wikidata.org.
  10. [18] ↑ . wikidata.org.
  11. [19] ↑ . Retrieved . wikidata.org.
  12. [15] ↑ . Czech National Authority Database. Retrieved . wikidata.org.
  13. [4] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  14. [5] ↑ . wikidata.org.
  15. [6] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  16. [16] ↑ . wikidata.org.
  17. [17] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.
  20. [22] ↑ . wikidata.org.
  21. [27] ↑ . wikidata.org.
  22. [23] ↑ . wikidata.org.
  23. [24] ↑ . wikidata.org.
  24. [25] ↑ . wikidata.org.
  25. [28] ↑ . wikidata.org.
  26. [29] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  27. [1] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  28. [2] ↑ . Integrated Authority File. Retrieved . wikidata.org.
  29. [30] ↑ . wikidata.org.
  30. [31] ↑ . wikidata.org.
  31. [32] ↑ . Czech National Authority Database. Retrieved . wikidata.org.

Aggregate / graph-position facts

  1. [7] ↑ . Wikimedia Foundation. dumps.wikimedia.org.
  2. [33] ↑ . Wikidata sitelinks. wikidata.org.
  3. [34] ↑ . 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 Gaddum. Retrieved October 14, 2026, from https://4ort.xyz/entity/john-gaddum
MLA “John Gaddum.” 4ort.xyz Knowledge Graph, 4ort.xyz, 14 Oct. 2026, https://4ort.xyz/entity/john-gaddum.
BibTeX @misc{4ortxyz_john-gaddum_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{John Gaddum}}, year = {2026}, url = {https://4ort.xyz/entity/john-gaddum}, note = {Accessed: 2026-10-14}}
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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. 2d ago · AntiDerangedKhanTengriAction · 2026-10-14 view diff on Wikidata ↗
    Open library id → OL139283A, OL5874711A
    Claims rich → —
    "/* wbcreateclaim-create:1| */ Open library id: OL5874711A, [[:toollabs:quickstatements/#/batch/290734|batch #290734]]"
  2. 10d ago · Bargioni · 2026-10-06 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'commons', 'de', 'en', 'eo', 'es', 'fr', 'it']
    Claims rich → —
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/58040|batch #58040]]: add P1810 to P396"
  3. 23d ago · Epìdosis · 2026-09-23 view diff on Wikidata ↗
    Sbn author id → UBOV100722
    "/* wbcreateclaim-create:1| */ Sbn author id: UBOV100722, [[:toollabs:quickstatements/#/batch/275040|batch #275040]]"
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