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Mark Twain House

non-profit organization in the USA
Organization Nonprofit Organization Q4165331

Facts

20 properties

Identity

Instance of
nonprofit organization, single-family detached home, historic house museum[5][6]
Official website
www.marktwainhouse.org[13]
Legal form
501(c)(3) organization[16]

Status and dates

Inception
1874[12]

Location

Headquarters location
Hartford[9]
Country
United States[4]
Coordinate location
🗺️ 41.767°, -72.701°
Located in the administrative territorial entity
Hartford[3]
Street address
351 Farmington Avenue[42]

Financials

Total assets
15.4M (14.3M–16.8M, n=12)[29][30][31][32][33][34][35][36][37][38][39][40]
Total revenue
2.8M (1.5M–4.3M, n=14)[17][18][19][20][21][22][23][24][25][26][27][28]

Relations

Part of
Nook Farm[10]
Member of
Connecticut League of Museums[2]
More facts +7
Accredited by
American Alliance of Museums[41]
Architect
Edward Tuckerman Potter[7]
Architectural style
Gothic Revival[8]
Donations
1.0M (1.0M–3.3M, n=12)[43][44][45][46][47][48][49][50][51][52][53][54]
Heritage designation
National Historic Landmark, National Register of Historic Places listed place[14][15]
Occupant
Mark Twain[11]
Social media followers
12k (11k–12k, n=4)[55][56][57][58]
🏷️ Also known as
en Mark Twain House en The Mark Twain House and Museum es Casa de mark twain es Casa de Mark Twain fr maison de Mark Twain fr Mark Twain House he בית מארק טוויין ja マーク。トウェイン・ハウス ru Дом Марка Твена uk Будинок Марка Твена
🔖 Identifiers · 22
ROR ID
01xn8m022
VIAF cluster ID
316746828
Library of Congress Authorities ID
sh2001009865
GND ID
6073054-7
GRID ID
grid.447059.b
Image (Wikimedia Commons)
House of Mark Twain.jpg ↗
ArchINFORM project ID
9202
Atlas Obscura place ID
the-mark-twain-house-museum-hartford-connecticut
Charity Navigator ID (obsolete)
4902
Facebook username
MarkTwainHouse
Freebase ID
/m/0bkql7
GeoNames ID
4838265
Show all 22 identifiers +10
HAND ID
204A-84F0-70A1-6E23-9095
IRS Employer Identification Number
06-0685118
Instagram username
themarktwainhouse
J9U entity ID
987007294661105171
NRHP reference number
66000884
OpenStreetMap way ID
194716932
SNARC ID
Heinrich Böhmer
Scilit organization ID
38092
X (Twitter) username
twainhouse
Yale LUX ID
group/bc47a4f8-4f7d-482a-acd6-93633388abb4
📚 Sources · 2
  • GeoNames as of 2026-09-26 · 1 statement · CC BY 4.0 CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.
  • OpenAlex as of 2026-09-27 · 1 statement · CC0 1.0 CC0 1.0 (OpenAlex snapshot, openalex.org). Values as shipped.

Report an error or request removal Lineage (PROV-JSON)

⛏️ Lake Facts · open-dataset statements via 4ort-mint

From open datasets, joined by identifier and shown only for properties Wikidata does not state on this entity — except where the dataset is the registry authority for the fact (ClinicalTrials.gov on trial registration data): there its value is shown instead, with Wikidata's noted beside it. Every row carries its dataset edition and licence.

Elevation above sea levelP2044
29 m 2026-09-26 S/MUS · US GeoNames (CC BY 4.0) as of 2026-09-26
where from?
Source
GeoNames
Edition
20260926 · as of 2026-09-26
Licence
CC BY 4.0
Credit
CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.
Bronze
1da92a6323a5fec3… admin1CodesASCII.txt +9 files
Transform
4ort-mint · lake · version not recorded
OpenAlex IDP10283
I4210112319 2026-09-27 OpenAlex (CC0 1.0) as of 2026-09-27
where from?
Source
OpenAlex
Edition
20260927 · as of 2026-09-27
Licence
CC0 1.0
Credit
CC0 1.0 (OpenAlex snapshot, openalex.org). Values as shipped.
Bronze
not in the catalog
Transform
4ort-mint · lake · version not recorded
CC0 1.0 (OpenAlex snapshot, openalex.org). Values as shipped.
CC BY 4.0 — attribution: GeoNames (www.geonames.org), licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). Values as shipped.
🔗 Connections
Instance of 3
nonprofit organization, single-family detached home, historic house museum
Residents 2
Mark Twain, Olivia Langdon Clemens
Accredited by 1
American Alliance of Museums
Architectural style 1
Gothic Revival
Country 1
United States
Headquarters location 1
Hartford
Heritage designation 1
National Historic Landmark
Legal form 1
501(c)(3) organization
Located in the administrative territorial entity 1
Hartford
Occupant 1
Mark Twain
Press Enter · cited answer in seconds

Summary

Mark Twain House is a nonprofit organization[1].

Related Entities

Mark Twain United States

References

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

Direct Wikidata claims

  1. [4] ↑ . archINFORM. Retrieved . wikidata.org.
  2. [5] ↑ . archINFORM. Retrieved . wikidata.org.
  3. [6] ↑ . wikidata.org.
  4. [7] ↑ . wikidata.org.
  5. [3] ↑ . archINFORM. Retrieved . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [2] ↑ . web.archive.org. Retrieved . web.archive.org. Provenance: wikidata.org.
  10. [11] ↑ . wikidata.org.
  11. [12] ↑ . wikidata.org.
  12. [13] ↑ . wikidata.org.
  13. [14] ↑ . nps.gov. Retrieved . nps.gov. Provenance: wikidata.org.
  14. [15] ↑ . National Register of Historic Places. Retrieved . wikidata.org.
  15. [16] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  16. [17] ↑ . Retrieved . wikidata.org.
  17. [18] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  18. [19] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  19. [20] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  20. [21] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  21. [22] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  22. [23] ↑ . Nonprofit Explorer. Retrieved . projects.propublica.org. Provenance: wikidata.org.
  23. [24] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  24. [25] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  25. [26] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  26. [27] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  27. [28] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  28. [29] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  29. [30] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  30. [31] ↑ . Nonprofit Explorer. Retrieved . projects.propublica.org. Provenance: wikidata.org.
  31. [32] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  32. [33] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  33. [34] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  34. [35] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  35. [36] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  36. [37] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  37. [38] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  38. [39] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  39. [40] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  40. [41] ↑ . ww2.aam-us.org. Retrieved . ww2.aam-us.org. Provenance: wikidata.org.
  41. [42] ↑ . wikidata.org.
  42. [43] ↑ . charitynavigator.org. Retrieved . charitynavigator.org. Provenance: wikidata.org.
  43. [44] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  44. [45] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  45. [46] ↑ . Nonprofit Explorer. Retrieved . projects.propublica.org. Provenance: wikidata.org.
  46. [47] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  47. [48] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  48. [49] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  49. [50] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  50. [51] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  51. [52] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  52. [53] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  53. [54] ↑ . Nonprofit Explorer. Retrieved . wikidata.org.
  54. [55] ↑ . wikidata.org.
  55. [56] ↑ . wikidata.org.
  56. [57] ↑ . wikidata.org.
  57. [58] ↑ . wikidata.org.

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). Mark Twain House. Retrieved November 11, 2026, from https://4ort.xyz/entity/mark-twain-house
MLA “Mark Twain House.” 4ort.xyz Knowledge Graph, 4ort.xyz, 11 Nov. 2026, https://4ort.xyz/entity/mark-twain-house.
BibTeX @misc{4ortxyz_mark-twain-house_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Mark Twain House}}, year = {2026}, url = {https://4ort.xyz/entity/mark-twain-house}, note = {Accessed: 2026-11-11}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Mark Twain House — https://4ort.xyz/entity/mark-twain-house (retrieved 2026-11-11)

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