John O'Callaghan

(1754-1818)
Person human Q76118634
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John O'Callaghan

Summary

John O'Callaghan is a human[1]. He was born on +1754-01-01T00:00:00Z[2]. He died on +1818-10-22T00:00:00Z[3].

Key Facts

  • John O'Callaghan was born on +1754-01-01T00:00:00Z[2].
  • John O'Callaghan died on +1818-10-22T00:00:00Z[3].
  • John O'Callaghan's father was Cornelius O'Callaghan[4].
  • John O'Callaghan's mother was Olivia Brady[5].
  • John O'Callaghan was married to Catherine Colpoys[6].
  • John O'Callaghan was married to Catherine O'Brien[7].
  • A child of John O'Callaghan was Edward O'Callaghan[8].
  • A child of John O'Callaghan was Cornelius O'Callaghan[9].
  • A child of John O'Callaghan was George O'Callaghan[10].
  • A child of John O'Callaghan was Donat O'Callaghan[11].
  • A child of John O'Callaghan was John O'Callaghan[12].
  • John O'Callaghan is recorded as male[13].
  • John O'Callaghan's instance of is recorded as human[14].
  • John O'Callaghan's given name is recorded as John[15].
  • John O'Callaghan's WikiTree person ID is recorded as O'Callaghan-823[16].
  • John O'Callaghan's The Peerage person ID is recorded as p54384.htm#i543833[17].

Body

Origins and Family

John O'Callaghan was born on +1754-01-01T00:00:00Z[2]. His father was Cornelius O'Callaghan[4]. His mother was Olivia Brady[5].

Personal Life

Spouses include Catherine Colpoys[6] and Catherine O'Brien[7]. Children include Edward O'Callaghan[8]; Cornelius O'Callaghan[9]; George O'Callaghan[10], 1788–1849[18]; Donat O'Callaghan[11]; and John O'Callaghan[12].

Death and Burial

John O'Callaghan died on +1818-10-22T00:00:00Z[3].

FAQs

Who were John O'Callaghan's parents?

John O'Callaghan's father was Cornelius O'Callaghan[4]. John O'Callaghan's mother was Olivia Brady[5].

Who was John O'Callaghan married to?

John O'Callaghan's spouses include Catherine Colpoys[6] and Catherine O'Brien[7].

References

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

Direct Wikidata claims

  1. [13] . The Peerage. wikidata.org.
  2. [4] . The Peerage. wikidata.org.
  3. [5] . The Peerage. wikidata.org.
  4. [6] . Retrieved . wikidata.org.
  5. [7] . Retrieved . wikidata.org.
  6. [14] . wikidata.org.
  7. [8] . The Peerage. wikidata.org.
  8. [9] . The Peerage. wikidata.org.
  9. [10] . The Peerage. wikidata.org.
  10. [11] . The Peerage. wikidata.org.
  11. [12] . The Peerage. wikidata.org.
  12. [2] . The Peerage. wikidata.org.
  13. [3] . The Peerage. wikidata.org.
  14. [15] . wikidata.org.
  15. [16] . wikidata.org.
  16. [17] . wikidata.org.

Inline context (facts about related entities)

  1. [18] . Wikidata. wikidata.org. → on this site

Class ancestry

  1. [1] . Wikidata. 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 O'Callaghan. Retrieved May 3, 2026, from https://4ort.xyz/entity/john-o-callaghan-q76118634
MLA “John O'Callaghan.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/john-o-callaghan-q76118634.
BibTeX @misc{4ortxyz_john-o-callaghan-q76118634_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{John O'Callaghan}}, year = {2026}, url = {https://4ort.xyz/entity/john-o-callaghan-q76118634}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): John O'Callaghan — https://4ort.xyz/entity/john-o-callaghan-q76118634 (retrieved 2026-05-03)

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