John O'Hart

Irish genealogist
Person human Q6250911
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John O'Hart

Summary

John O'Hart is a human[1]. He was born on +1824-01-01T00:00:00Z[2]. He died on +1902-01-01T00:00:00Z[3]. He worked as a historian[4] and genealogist[5]. He ranks in the top 0.73% of human entities by monthly Wikipedia readership (15 views/month, #7,287 of 1,000,298).[6]

Key Facts

  • John O'Hart was born on +1824-01-01T00:00:00Z[2].
  • John O'Hart died on +1902-01-01T00:00:00Z[3].
  • John O'Hart worked as a historian[4].
  • John O'Hart worked as a genealogist[5].
  • John O'Hart's image is recorded as John-O-Hart-1892--Irish-Pedigrees.png[7].
  • John O'Hart is recorded as male[8].
  • John O'Hart's instance of is recorded as human[9].
  • John O'Hart's ISNI is recorded as 0000000083389904[10].
  • John O'Hart's VIAF cluster ID is recorded as 5300275[11].
  • John O'Hart's Library of Congress authority ID is recorded as n87863096[12].
  • John O'Hart's Freebase ID is recorded as /m/04ny69[13].
  • John O'Hart's given name is recorded as John[14].
  • John O'Hart's Nationale Thesaurus voor Auteursnamen ID is recorded as 073388238[15].
  • John O'Hart's Vatican Library ID is recorded as ADV11003193[16].
  • John O'Hart's FAST ID is recorded as 1482503[17].
  • John O'Hart's WikiTree person ID is recorded as O'Hart-3[18].
  • John O'Hart's SNAC ARK ID is recorded as w6np530r[19].
  • John O'Hart's openMLOL author ID is recorded as 150253[20].
  • John O'Hart's AINM ID is recorded as 1139[21].
  • John O'Hart's Dictionary of Irish Biography ID is recorded as 006795[22].
  • John O'Hart's Vatican Library VcBA ID is recorded as 495/227962[23].
  • John O'Hart's WorldCat Entities ID is recorded as E39PBJc3Hhk4yfYpR6hPdpk7HC[24].
  • John O'Hart's Yale LUX ID is recorded as person/7acdae03-62c9-4b98-a24d-38f8ee7a733d[25].

Body

Origins and Family

John O'Hart was born on +1824-01-01T00:00:00Z[2].

Career and Affiliations

Recorded occupations include historian[4] and genealogist[5].

Death and Burial

John O'Hart died on +1902-01-01T00:00:00Z[3].

Why It Matters

John O'Hart ranks in the top 0.73% of human entities by monthly Wikipedia readership (15 views/month, #7,287 of 1,000,298).[6]

FAQs

What did John O'Hart do for work?

John O'Hart worked as historian[4] and genealogist[5].

References

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

Direct Wikidata claims

  1. [7] . wikidata.org.
  2. [8] . wikidata.org.
  3. [9] . wikidata.org.
  4. [4] . wikidata.org.
  5. [5] . wikidata.org.
  6. [10] . International Standard Name Identifier. wikidata.org.
  7. [11] . wikidata.org.
  8. [12] . Faceted Application of Subject Terminology. Retrieved . wikidata.org.
  9. [2] . SNAC. Retrieved . wikidata.org.
  10. [3] . SNAC. Retrieved . wikidata.org.
  11. [13] . wikidata.org.
  12. [14] . wikidata.org.
  13. [15] . Virtual International Authority File. Retrieved . wikidata.org.
  14. [16] . Virtual International Authority File. Retrieved . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . wikidata.org.
  17. [19] . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . Retrieved . wikidata.org.
  21. [23] . Virtual International Authority File. Retrieved . wikidata.org.
  22. [24] . Retrieved . wikidata.org.
  23. [25] . wikidata.org.

Class ancestry

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

Aggregate / graph-position facts

  1. [6] . 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). John O'Hart. Retrieved April 10, 2026, from https://4ort.xyz/entity/john-o-hart
MLA “John O'Hart.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/john-o-hart.
BibTeX @misc{4ortxyz_john-o-hart_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{John O'Hart}}, year = {2026}, url = {https://4ort.xyz/entity/john-o-hart}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): John O'Hart — https://4ort.xyz/entity/john-o-hart (retrieved 2026-04-10)

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