Michael Barr

Canadian mathematician and computer scientist
Person human Q11109023
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Michael Barr

Summary

Michael Barr is a human[1]. His place of birth was Philadelphia[2]. He was born on +1937-01-22T00:00:00Z[3]. He worked as a mathematician[4], computer scientist[5], engineer[6], and university teacher[7]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (9 views/month, #7,293 of 1,000,298).[8]

Key Facts

  • Born in Philadelphia[2], Michael Barr…
  • Michael Barr was born on +1937-01-22T00:00:00Z[3].
  • Michael Barr was born on +1937-01-01T00:00:00Z[9].
  • Michael Barr held citizenship in Canada[10].
  • Michael Barr worked as a mathematician[4].
  • Michael Barr worked as a computer scientist[5].
  • Michael Barr's professions included engineer[6].
  • Michael Barr's professions included university teacher[7].
  • Michael Barr's field of work was mathematics[11].
  • Michael Barr's field of work was category theory[12].
  • Michael Barr's field of work was homological algebra[13].
  • Michael Barr's field of work was informatics[14].
  • Michael Barr's field of work was computer science[15].
  • Michael Barr was employed by McGill University[16].
  • Michael Barr's education included a stint at University of Pennsylvania[17].
  • Michael Barr's doctoral advisor was David Kent Harrison[18].
  • Michael Barr is recorded as male[19].
  • Michael Barr's instance of is recorded as human[20].
  • Michael Barr supervised Donovan Harold Van Osdol as a doctoral student[21].
  • Michael Barr supervised Patrick John Fleury as a doctoral student[22].
  • Michael Barr supervised Grace Geist Orzech as a doctoral student[23].
  • Michael Barr supervised Robert Reed McConnel as a doctoral student[24].
  • Michael Barr supervised Po-Hsiang (Peter) Chu as a doctoral student[25].
  • Michael Barr supervised Thomas Fox as a doctoral student[26].
  • Michael Barr supervised James R. Otto, Jr. as a doctoral student[27].

Body

Origins and Family

Michael Barr was born in Philadelphia[2]. Recorded date of birth include +1937-01-22T00:00:00Z[3] and +1937-01-01T00:00:00Z[9].

Education

Michael Barr was educated at University of Pennsylvania[17]. His doctoral advisor was David Kent Harrison[18].

Career and Affiliations

Recorded occupations include mathematician[4], computer scientist[5], engineer[6], and university teacher[7]. Fields of work include mathematics[11], an academic discipline[28]; category theory[12], a branch of mathematics[29]; homological algebra[13], a branch of mathematics[30]; informatics[14], an academic major[31], founded in 1957[32]; and computer science[15], an academic discipline[33]. Michael Barr was employed by McGill University[16]. Doctoral students include Donovan Harold Van Osdol[21]; Patrick John Fleury[22], a university teacher[34], b. 1943[35], of United States[36]; Grace Geist Orzech[23], a university teacher[37]; Robert Reed McConnel[24]; Po-Hsiang (Peter) Chu[25]; and Thomas Fox[26].

Why It Matters

Michael Barr ranks in the top 0.73% of human entities by monthly Wikipedia readership (9 views/month, #7,293 of 1,000,298).[8]

FAQs

Where was Michael Barr born?

Michael Barr was born in Philadelphia[2].

What did Michael Barr do for work?

Michael Barr worked as mathematician[4], computer scientist[5], engineer[6], and university teacher[7].

Where did Michael Barr go to school?

Michael Barr was educated at University of Pennsylvania[17].

References

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

Direct Wikidata claims

  1. [2] . wikidata.org.
  2. [19] . Czech National Authority Database. Retrieved . wikidata.org.
  3. [10] . wikidata.org.
  4. [20] . wikidata.org.
  5. [17] . wikidata.org.
  6. [11] . Czech National Authority Database. Retrieved . wikidata.org.
  7. [12] . Czech National Authority Database. Retrieved . wikidata.org.
  8. [13] . Czech National Authority Database. Retrieved . wikidata.org.
  9. [14] . Czech National Authority Database. Retrieved . wikidata.org.
  10. [15] . Czech National Authority Database. Retrieved . wikidata.org.
  11. [4] . wikidata.org.
  12. [5] . wikidata.org.
  13. [6] . wikidata.org.
  14. [7] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [16] . wikidata.org.
  16. [18] . Mathematics Genealogy Project. wikidata.org.
  17. [21] . Mathematics Genealogy Project. wikidata.org.
  18. [22] . Mathematics Genealogy Project. wikidata.org.
  19. [23] . Mathematics Genealogy Project. wikidata.org.
  20. [24] . Mathematics Genealogy Project. wikidata.org.
  21. [25] . Mathematics Genealogy Project. wikidata.org.
  22. [26] . Mathematics Genealogy Project. wikidata.org.
  23. [27] . Mathematics Genealogy Project. wikidata.org.
  24. [3] . BnF authorities. Retrieved . catalogue.bnf.fr. Provenance: wikidata.org.
  25. [9] . Czech National Authority Database. Retrieved . 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). Michael Barr. Retrieved March 11, 2026, from https://4ort.xyz/entity/michael-barr
MLA “Michael Barr.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Mar. 2026, https://4ort.xyz/entity/michael-barr.
BibTeX @misc{4ortxyz_michael-barr_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Michael Barr}}, year = {2026}, url = {https://4ort.xyz/entity/michael-barr}, note = {Accessed: 2026-03-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Michael Barr — https://4ort.xyz/entity/michael-barr (retrieved 2026-03-11)

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