Lee de Forest

American inventor (1873–1961)
Person human Q354863
Lee de Forest
Unknown authorUnknown author · Public Domain · Wikimedia
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Lee de Forest

Summary

Lee de Forest is a human[1]. His place of birth was Council Bluffs[2]. He was born on August 26, 1873[3]. He passed away in Hollywood[4]. He died on June 30, 1961[5]. He worked as a physicist[6], inventor[7], film director[8], electrical engineer[9], and film producer[10]. He ranks in the top 0.71% of human entities by monthly Wikipedia readership (458 views/month, #7,139 of 1,000,298).[11]

Key Facts

  • Lee de Forest was born in Council Bluffs[2].
  • Lee de Forest passed away in Hollywood[4].
  • Lee de Forest was born on August 26, 1873[3].
  • Lee de Forest died on June 30, 1961[5].
  • Lee de Forest is buried at San Fernando Mission Cemetery[12].
  • Lee de Forest's father was Henry Swift de Forest[13].
  • Lee de Forest's mother was Anna Margaret Robbins[14].
  • Among Lee de Forest's spouses was Nora Stanton Blatch Barney[15].
  • Among Lee de Forest's spouses was Marie Mosquini[16].
  • Among Lee de Forest's spouses was Lucille Sheardown[17].
  • Lee de Forest held citizenship in United States[18].
  • Lee de Forest's professions included physicist[6].
  • Lee de Forest's professions included inventor[7].
  • Lee de Forest's professions included film director[8].
  • Lee de Forest's professions included electrical engineer[9].
  • Lee de Forest's professions included film producer[10].
  • Lee de Forest's professions included radio technician[19].
  • Lee de Forest's field of work was technology[20].
  • Lee de Forest's field of work was diode[21].
  • Lee de Forest's field of work was valve amplifier[22].
  • Lee de Forest's field of work was wireless telegraphy[23].
  • Lee de Forest's field of work was radiotelephony[24].
  • Lee de Forest's field of work was history of technology[25].
  • Among Lee de Forest's employers was Illinois Institute of Technology[26].
  • Lee de Forest was educated at Yale University[27].

Product Details

The following facts are restated verbatim from public-domain and CC0 open-data sources — every line is independently verifiable against the named source's catalog.

MusicBrainz — CC0 open music encyclopedia

  • Type: Person[28]

  • Country: US[29]

  • Began / founded: 1873-08-26[30]

  • Ended / dissolved: 1961-06-30[31]

  • MusicBrainz ID: 1da85dd2-4fa3-4af3-89b3-b31b1ae5cdbc[32]

Body

Origins and Family

Lee de Forest's place of birth was Council Bluffs[2]. He was born on August 26, 1873[3]. His father was Henry Swift de Forest[13]. His mother was Anna Margaret Robbins[14].

Education

Educated at Yale University[27], a private university[33], in United States[34], founded in 1701[35], headquartered in New Haven[36]; Yale School of Engineering and Applied Science[37], an academic institution[38], in United States[39], founded in 1852[40]; Northfield Mount Hermon School[41], a school[42], in United States[43], founded in 1879[44], headquartered in Gill[45]; and Sheffield Scientific School[46], a college[47], in United States[48], founded in 1847[49]. Lee de Forest studied under Josiah Willard Gibbs[50].

Career and Affiliations

Recorded occupations include physicist[6], inventor[7], film director[8], electrical engineer[9], film producer[10], and radio technician[19]. Fields of work include technology[20], an academic discipline[51]; diode[21]; valve amplifier[22]; wireless telegraphy[23]; radiotelephony[24]; and history of technology[25], an aspect of history[52]. Lee de Forest was employed by Illinois Institute of Technology[26].

Works and Contributions

A notable work attributed to Lee de Forest is triode[53]. Things named for him include De Forest[54], a lunar crater[55].

Recognition

Awards received include Edison Medal[56], a science award[57], in United States[58], founded in 1904[59]; Elliott Cresson Medal[60], an award[61], in United States[62], founded in 1875[63]; IEEE Medal of Honor[64], a science award[65], founded in 1917[66]; National Inventors Hall of Fame[67], a hall of fame[68], in United States[69], founded in 1973[70], headquartered in North Canton[71]; Legion of Honour[72], a state order[73], in France[74], founded in 1802[75]; and star on Hollywood Walk of Fame[76], a commemorative plaque[77], in United States[78].

Personal Life

Spouses include Nora Stanton Blatch Barney[15], an architect[79], 1883–1971[80], of United States[81], specialised in civil engineer[82]; Marie Mosquini[16], a film actor[83], 1899–1983[84], of United States[85]; and Lucille Sheardown[17]. Lee de Forest was affiliated with the Republican Party[86].

Death and Burial

Lee de Forest died on June 30, 1961[5]. He died in Hollywood[4]. He is buried at San Fernando Mission Cemetery[12].

Why It Matters

Lee de Forest ranks in the top 0.71% of human entities by monthly Wikipedia readership (458 views/month, #7,139 of 1,000,298).[11] He has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[87] He is known by 13 alternative names across languages and contexts.[88]

He is credited with the discovery of triode[89]; Audion[90], a trademark[91], founded in 1906[92]; and Phonofilm[93], a trademark[94]. Entities named for him include De Forest[54], a lunar crater[55].

FAQs

Where was Lee de Forest born?

Born in Council Bluffs[2], Lee de Forest…

Where did Lee de Forest die?

Lee de Forest passed away in Hollywood[4].

Who were Lee de Forest's parents?

Lee de Forest's father was Henry Swift de Forest[13]. Lee de Forest's mother was Anna Margaret Robbins[14].

Who was Lee de Forest married to?

Lee de Forest's spouses include Nora Stanton Blatch Barney[15], Marie Mosquini[16], and Lucille Sheardown[17].

What did Lee de Forest do for work?

Lee de Forest worked as physicist[6], inventor[7], film director[8], electrical engineer[9], and film producer[10].

Where did Lee de Forest go to school?

Lee de Forest was educated at Yale University[27], Yale School of Engineering and Applied Science[37], Northfield Mount Hermon School[41], and Sheffield Scientific School[46].

What awards did Lee de Forest receive?

Honors received include Edison Medal[56], Elliott Cresson Medal[60], IEEE Medal of Honor[64], and National Inventors Hall of Fame[67].

What did Lee de Forest discover?

Lee de Forest is credited as discoverer of triode[89], Audion[90], and Phonofilm[93].

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. [13] . Genealogics. wikidata.org.
  4. [14] . Genealogics. wikidata.org.
  5. [15] . wikidata.org.
  6. [16] . wikidata.org.
  7. [17] . wikidata.org.
  8. [18] . wikidata.org.
  9. [27] . wikidata.org.
  10. [37] . wikidata.org.
  11. [41] . Retrieved . wikidata.org.
  12. [46] . wikidata.org.
  13. [20] . wikidata.org.
  14. [21] . Czech National Authority Database. Retrieved . wikidata.org.
  15. [22] . Czech National Authority Database. Retrieved . wikidata.org.
  16. [23] . Czech National Authority Database. Retrieved . wikidata.org.
  17. [24] . Czech National Authority Database. Retrieved . wikidata.org.
  18. [25] . Czech National Authority Database. Retrieved . wikidata.org.
  19. [86] . wikidata.org.
  20. [6] . wikidata.org.
  21. [7] . wikidata.org.
  22. [8] . wikidata.org.
  23. [9] . wikidata.org.
  24. [10] . Retrieved . wikidata.org.
  25. [19] . Czech National Authority Database. Retrieved . wikidata.org.
  26. [26] . wikidata.org.
  27. [12] . wikidata.org.
  28. [56] . ieee.org. ieee.org. Provenance: wikidata.org.
  29. [60] . fi.edu. fi.edu. Provenance: wikidata.org.
  30. [64] . ieee.org. ieee.org. Provenance: wikidata.org.
  31. [67] . National Inventors Hall of Fame. wikidata.org.
  32. [72] . wikidata.org.
  33. [76] . Retrieved . wikidata.org.
  34. [3] . IMDb. Retrieved . wikidata.org.
  35. [5] . IMDb. Retrieved . wikidata.org.
  36. [53] . wikidata.org.
  37. [50] . wikidata.org.

Product details (FDA / USDA / NHTSA public-domain catalog data)

  1. [28] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  2. [29] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  3. [30] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  4. [31] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.
  5. [32] . MusicBrainz (MetaBrainz Foundation). musicbrainz.org.

Inverse relationships (entities pointing at this one)

  1. [89] . wikidata.org. → on this site
  2. [90] . wikidata.org. → on this site
  3. [93] . wikidata.org. → on this site
  4. [54] . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [79] . Wikidata. wikidata.org. → on this site
  2. [80] . Wikidata. wikidata.org. → on this site
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  19. [47] . Wikidata. wikidata.org. → on this site
  20. [48] . Wikidata. wikidata.org. → on this site
  21. [49] . Wikidata. wikidata.org. → on this site
  22. [51] . Wikidata. wikidata.org. → on this site
  23. [52] . Wikidata. wikidata.org. → on this site
  24. [57] . Wikidata. wikidata.org. → on this site
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  29. [63] . Wikidata. wikidata.org. → on this site
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  33. [69] . Wikidata. wikidata.org. → on this site
  34. [70] . Wikidata. wikidata.org. → on this site
  35. [71] . Wikidata. wikidata.org. → on this site
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  40. [78] . Wikidata. wikidata.org. → on this site
  41. [91] . Wikidata. wikidata.org. → on this site
  42. [92] . Wikidata. wikidata.org. → on this site
  43. [94] . Wikidata. wikidata.org. → on this site
  44. [55] . Wikidata. wikidata.org. → on this site

Class ancestry

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

Aggregate / graph-position facts

  1. [11] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [87] . Wikidata sitelinks. wikidata.org.
  3. [88] . Wikidata aliases. 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). Lee de Forest. Retrieved April 10, 2026, from https://4ort.xyz/entity/lee-de-forest
MLA “Lee de Forest.” 4ort.xyz Knowledge Graph, 4ort.xyz, 10 Apr. 2026, https://4ort.xyz/entity/lee-de-forest.
BibTeX @misc{4ortxyz_lee-de-forest_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Lee de Forest}}, year = {2026}, url = {https://4ort.xyz/entity/lee-de-forest}, note = {Accessed: 2026-04-10}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Lee de Forest — https://4ort.xyz/entity/lee-de-forest (retrieved 2026-04-10)

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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. 13d ago · Epìdosis · 2026-05-20 view diff on Wikidata ↗
    Notable work triode
    Given name Lee
    Field of work technology, diode, valve amplifier +3
    On focus list of wikimedia project WikiProject PCC Wikidata Pilot/Smithsonian Libraries Dibner Library portraits, Wikipedia:Vital articles/Level/4, WikiProject IIT
    + 36 other properties edited (see Wikidata diff for full list)
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/32085|batch #32085]]: import P21 and P106 from GND (27)"
Live feed via Wikidata EventStreams. New edits appear within minutes of being made on Wikidata.