Lee de Forest

American inventor (1873–1961)
Person human Q354863
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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 (138 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].

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[28], in United States[29], founded in 1701[30], headquartered in New Haven[31]; Yale School of Engineering and Applied Science[32], an academic institution[33], in United States[34], founded in 1852[35]; Northfield Mount Hermon School[36], a school[37], in United States[38], founded in 1879[39], headquartered in Gill[40]; and Sheffield Scientific School[41], a college[42], in United States[43], founded in 1847[44]. Lee de Forest studied under Josiah Willard Gibbs[45].

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[46]; diode[21]; valve amplifier[22]; wireless telegraphy[23]; radiotelephony[24]; and history of technology[25], an aspect of history[47]. Lee de Forest was employed by Illinois Institute of Technology[26].

Works and Contributions

A notable work attributed to Lee de Forest is triode[48]. Things named for him include De Forest[49], a lunar crater[50].

Recognition

Awards received include Edison Medal[51], a science award[52], in United States[53], founded in 1904[54]; Elliott Cresson Medal[55], an award[56], in United States[57], founded in 1875[58]; IEEE Medal of Honor[59], a science award[60], founded in 1917[61]; National Inventors Hall of Fame[62], a nonprofit organization[63], in United States[64], founded in 1973[65], headquartered in North Canton[66]; Legion of Honour[67], a state order[68], in France[69], founded in 1802[70]; and star on Hollywood Walk of Fame[71], a commemorative plaque[72], in United States[73].

Personal Life

Spouses include Nora Stanton Blatch Barney[15], an architect[74], 1883–1971[75], of United States[76], specialised in civil engineer[77]; Marie Mosquini[16], a film actor[78], 1899–1983[79], of United States[80]; and Lucille Sheardown[17]. Lee de Forest was affiliated with the Republican Party[81].

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 (138 views/month, #7,139 of 1,000,298).[11] He has Wikipedia articles in 26 language editions, a strong signal of global cultural recognition.[82] He is known by 24 alternative names across languages and contexts.[83]

He is credited with the discovery of triode[84]; Audion[85], a trademark[86], founded in 1906[87]; and Phonofilm[88], a trademark[89]. Entities named for him include De Forest[49], a lunar crater[50].

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[32], Northfield Mount Hermon School[36], and Sheffield Scientific School[41].

What awards did Lee de Forest receive?

Honors received include Edison Medal[51], Elliott Cresson Medal[55], IEEE Medal of Honor[59], and National Inventors Hall of Fame[62].

What did Lee de Forest discover?

Lee de Forest is credited as discoverer of triode[84], Audion[85], and Phonofilm[88].

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. [32] ↑ . wikidata.org.
  11. [36] ↑ . Retrieved . wikidata.org.
  12. [41] ↑ . 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. [81] ↑ . wikidata.org.
  20. [6] ↑ . wikidata.org.
  21. [7] ↑ . Integrated Authority File. Retrieved . 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. [51] ↑ . ieee.org. ieee.org. Provenance: wikidata.org.
  29. [55] ↑ . fi.edu. fi.edu. Provenance: wikidata.org.
  30. [59] ↑ . ieee.org. ieee.org. Provenance: wikidata.org.
  31. [62] ↑ . National Inventors Hall of Fame. wikidata.org.
  32. [67] ↑ . wikidata.org.
  33. [71] ↑ . Retrieved . wikidata.org.
  34. [3] ↑ . IMDb. Retrieved . wikidata.org.
  35. [5] ↑ . IMDb. Retrieved . wikidata.org.
  36. [48] ↑ . wikidata.org.
  37. [45] ↑ . wikidata.org.

Inverse relationships (entities pointing at this one)

  1. [84] ↑ . wikidata.org. → on this site
  2. [85] ↑ . wikidata.org. → on this site
  3. [88] ↑ . wikidata.org. → on this site
  4. [49] ↑ . wikidata.org. → on this site

Inline context (facts about related entities)

  1. [74] ↑ . Wikidata. wikidata.org. → on this site
  2. [75] ↑ . Wikidata. wikidata.org. → on this site
  3. [76] ↑ . Wikidata. wikidata.org. → on this site
  4. [77] ↑ . Wikidata. wikidata.org. → on this site
  5. [78] ↑ . Wikidata. wikidata.org. → on this site
  6. [79] ↑ . Wikidata. wikidata.org. → on this site
  7. [80] ↑ . Wikidata. wikidata.org. → on this site
  8. [28] ↑ . Wikidata. wikidata.org. → on this site
  9. [29] ↑ . Wikidata. wikidata.org. → on this site
  10. [30] ↑ . Wikidata. wikidata.org. → on this site
  11. [31] ↑ . Wikidata. wikidata.org. → on this site
  12. [33] ↑ . Wikidata. wikidata.org. → on this site
  13. [34] ↑ . Wikidata. wikidata.org. → on this site
  14. [35] ↑ . Wikidata. wikidata.org. → on this site
  15. [37] ↑ . Wikidata. wikidata.org. → on this site
  16. [38] ↑ . Wikidata. wikidata.org. → on this site
  17. [39] ↑ . Wikidata. wikidata.org. → on this site
  18. [40] ↑ . Wikidata. wikidata.org. → on this site
  19. [42] ↑ . Wikidata. wikidata.org. → on this site
  20. [43] ↑ . Wikidata. wikidata.org. → on this site
  21. [44] ↑ . Wikidata. wikidata.org. → on this site
  22. [46] ↑ . Wikidata. wikidata.org. → on this site
  23. [47] ↑ . Wikidata. wikidata.org. → on this site
  24. [52] ↑ . Wikidata. wikidata.org. → on this site
  25. [53] ↑ . Wikidata. wikidata.org. → on this site
  26. [54] ↑ . Wikidata. wikidata.org. → on this site
  27. [56] ↑ . Wikidata. wikidata.org. → on this site
  28. [57] ↑ . Wikidata. wikidata.org. → on this site
  29. [58] ↑ . Wikidata. wikidata.org. → on this site
  30. [60] ↑ . Wikidata. wikidata.org. → on this site
  31. [61] ↑ . Wikidata. wikidata.org. → on this site
  32. [63] ↑ . Wikidata. wikidata.org. → on this site
  33. [64] ↑ . Wikidata. wikidata.org. → on this site
  34. [65] ↑ . Wikidata. wikidata.org. → on this site
  35. [66] ↑ . Wikidata. wikidata.org. → on this site
  36. [68] ↑ . Wikidata. wikidata.org. → on this site
  37. [69] ↑ . Wikidata. wikidata.org. → on this site
  38. [70] ↑ . Wikidata. wikidata.org. → on this site
  39. [72] ↑ . Wikidata. wikidata.org. → on this site
  40. [73] ↑ . Wikidata. wikidata.org. → on this site
  41. [86] ↑ . Wikidata. wikidata.org. → on this site
  42. [87] ↑ . Wikidata. wikidata.org. → on this site
  43. [89] ↑ . Wikidata. wikidata.org. → on this site
  44. [50] ↑ . 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. [82] ↑ . Wikidata sitelinks. wikidata.org.
  3. [83] ↑ . 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 October 5, 2026, from https://4ort.xyz/entity/lee-de-forest
MLA “Lee de Forest.” 4ort.xyz Knowledge Graph, 4ort.xyz, 5 Oct. 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: 2026-10-05}}
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 2026-10-05)

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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. 1d ago · Animalparty · 2026-10-04 view diff on Wikidata ↗
    Wikipedia languages → ['ar', 'arz', 'ast', 'be', 'be_x_old', 'bg', 'ca', 'commons', 'cs', 'da', 'de',
    Image url → —
    Image artist → —
    Image license type → —
    + 5 other properties edited (see Wikidata diff for full list)
    "/* wbremoveclaims-remove:1| */ [[Property:P18]]: Lee de Forest 2012 002 6580 sx61dn13g crop.tiff"
  2. 6w ago · Mahirtwofivesix · 2026-08-19 view diff on Wikidata ↗
    Babelnet id → 00025483n
    Arabic ontology lexical concept id → 151059396
    "/* wbeditentity-statements-multiple-properties-update:0||4 */ added/modified IDs mapped to WordNet 3.1"
  3. 8w ago · Yirba · 2026-08-10 view diff on Wikidata ↗
    P14750 → D3FC-678D-9FD3-2FA2-D10C
    "/* wbeditentity-update:0| */ QuickStatements 3.0 [[:toollabs:qs-dev/batch/46380|batch #46380]]: HAND ID (3)"
  4. 14w ago · Printstream · 2026-06-26 view diff on Wikidata ↗
    P14536 → 391153
    "/* wbcreateclaim-create:1| */ [[Property:P14536]]: 391153, #quickstatements; #temporary_batch_1782462304762"
  5. 19w 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)"
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