Donald Sadler

Sadler, Donald Harry (1908–1987), mathematician and astronomer
Person human Q19325441
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Donald Sadler

Summary

Donald Sadler is a human[1]. His place of birth was Dewsbury[2]. He was born on August 22, 1908[3]. He died in Bexhill-on-Sea[4]. He died on October 24, 1987[5]. He worked as an astronomer[6] and mathematician[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,292 of 1,000,298).[8]

Key Facts

  • Born in Dewsbury[2], Donald Sadler…
  • Donald Sadler died in Bexhill-on-Sea[4].
  • Donald Sadler was born on August 22, 1908[3].
  • Donald Sadler died on October 24, 1987[5].
  • Burial took place at Eastbourne crematorium[9].
  • Among Donald Sadler's spouses was Flora Sadler[10].
  • Donald Sadler held citizenship in United Kingdom of Great Britain and Ireland[11].
  • Donald Sadler held citizenship in United Kingdom[12].
  • Donald Sadler's professions included astronomer[6].
  • Donald Sadler's professions included mathematician[7].
  • Donald Sadler held the position of superintendent[13].
  • Donald Sadler held the position of President of the Royal Astronomical Society[14].
  • Donald Sadler held the position of chairperson[15].
  • Donald Sadler held the position of general secretary[16].
  • Donald Sadler was employed by HM Nautical Almanac Office[17].
  • Donald Sadler's education included a stint at Trinity College[18].
  • Donald Sadler received the Prix Jules Janssen[19].
  • Donald Sadler received the Member of the Order of the British Empire[20].
  • Donald Sadler is recorded as male[21].
  • Donald Sadler's instance of is recorded as human[22].
  • Donald Sadler's family name is recorded as Sadler[23].
  • Donald Sadler's given name is recorded as Donald[24].
  • Donald Sadler's described by source is recorded as Oxford Dictionary of National Biography[25].
  • Donald Sadler's described by source is recorded as Quarterly Journal of the Royal Astronomical Society[26].
  • Donald Sadler's described by source is recorded as Journal of Navigation[27].

Body

Origins and Family

Donald Sadler's place of birth was Dewsbury[2]. He was born on August 22, 1908[3].

Education

Donald Sadler was educated at Trinity College[18].

Career and Affiliations

Recorded occupations include astronomer[6] and mathematician[7]. Donald Sadler was employed by HM Nautical Almanac Office[17]. Positions held include superintendent[13]; President of the Royal Astronomical Society[14], a position[28], in United Kingdom[29], founded in 1821[30]; chairperson[15], a type of position[31]; and general secretary[16], a position[32].

Recognition

Awards received include Prix Jules Janssen[19], a science award[33], in France[34], founded in 1897[35] and Member of the Order of the British Empire[20], an award[36], in United Kingdom[37].

Personal Life

Among Donald Sadler's spouses was Flora Sadler[10].

Death and Burial

Donald Sadler died on October 24, 1987[5]. He died in Bexhill-on-Sea[4]. He is buried at Eastbourne crematorium[9].

Why It Matters

Donald Sadler ranks in the top 0.73% of human entities by monthly Wikipedia readership (11 views/month, #7,292 of 1,000,298).[8]

FAQs

Where was Donald Sadler born?

Born in Dewsbury[2], Donald Sadler…

Where did Donald Sadler die?

Donald Sadler passed away in Bexhill-on-Sea[4].

Who was Donald Sadler married to?

Donald Sadler's spouses include Flora Sadler[10].

What did Donald Sadler do for work?

Donald Sadler worked as astronomer[6] and mathematician[7].

Where did Donald Sadler go to school?

Donald Sadler was educated at Trinity College[18].

What awards did Donald Sadler receive?

Honors received include Prix Jules Janssen[19] and Member of the Order of the British Empire[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] ↑ . wikidata.org.
  4. [10] ↑ . wikidata.org.
  5. [11] ↑ . wikidata.org.
  6. [12] ↑ . wikidata.org.
  7. [22] ↑ . wikidata.org.
  8. [13] ↑ . wikidata.org.
  9. [14] ↑ . wikidata.org.
  10. [15] ↑ . wikidata.org.
  11. [16] ↑ . wikidata.org.
  12. [18] ↑ . wikidata.org.
  13. [6] ↑ . wikidata.org.
  14. [7] ↑ . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [9] ↑ . wikidata.org.
  17. [19] ↑ . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [3] ↑ . wikidata.org.
  20. [5] ↑ . wikidata.org.
  21. [23] ↑ . wikidata.org.
  22. [24] ↑ . wikidata.org.
  23. [25] ↑ . wikidata.org.
  24. [26] ↑ . wikidata.org.
  25. [27] ↑ . wikidata.org.

Inline context (facts about related entities)

  1. [28] ↑ . Wikidata. wikidata.org. → on this site
  2. [29] ↑ . Wikidata. wikidata.org. → on this site
  3. [30] ↑ . Wikidata. wikidata.org. → on this site
  4. [31] ↑ . Wikidata. wikidata.org. → on this site
  5. [32] ↑ . Wikidata. wikidata.org. → on this site
  6. [33] ↑ . Wikidata. wikidata.org. → on this site
  7. [34] ↑ . Wikidata. wikidata.org. → on this site
  8. [35] ↑ . Wikidata. wikidata.org. → on this site
  9. [36] ↑ . Wikidata. wikidata.org. → on this site
  10. [37] ↑ . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [8] ↑ . Wikimedia Foundation. dumps.wikimedia.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). Donald Sadler. Retrieved May 3, 2026, from https://4ort.xyz/entity/donald-sadler
MLA “Donald Sadler.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/donald-sadler.
BibTeX @misc{4ortxyz_donald-sadler_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Donald Sadler}}, year = {2026}, url = {https://4ort.xyz/entity/donald-sadler}, note = {Accessed: 2026-05-03}}
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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. 14d ago · Simon Villeneuve · 2026-09-12 view diff on Wikidata ↗
    P14528 → 30234
    Position held → superintendent, President of the Royal Astronomical Society, chairperson +1
    "/* wbsetclaim-create:1||1 */ [[Property:P14528]]: 30234, Matched to [[:toollabs:mix-n-match/#/entry/291503652|Donald Sadler (#291503652)]] in [[:toollabs:mix-n-match/#/catalog/7954|IAU member]] #mix'n"
  2. 18w ago · Epìdosis · 2026-05-19 view diff on Wikidata ↗
    Place of birth → Dewsbury
    Freebase id → /m/013b6f1n
    Date of birth → +1908-08-22T00:00:00Z
    Zbmath author id → sadler.d-h
    + 34 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32074|batch #32074]]: import P21 and P106 from GND (21)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.