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Research dossier · People & Ideas

John Glascock

English musician (1951–1979)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 21, 2026
Entity authoritySource title only
Source-derived summary

John Glascock was a British musician. He was the bassist and occasional lead vocalist of the rock band Carmen from 1972 to 1975; and the bass guitarist for progressive rock band Jethro Tull from 1976 until his death in 1979. Glascock died at the age of 28 as a result of a congenital heart valve defect, which was worsened by an infection caused by an abscessed tooth.

Editorial summary

This brief starts where responsible research should: with the source description of “John Glascock” as english musician (1951–1979). Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA productive starting point for separating a subject’s documented career from later reputation and commemoration. The current lead gives the account dated anchors—1972, 1975, 1976, 1979—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where John, Glascock and English can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the people & ideas register because the source frames it as english musician (1951–1979). Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Jul 21, 2026. The first chronological checks are 1972, 1975, 1976 and 1979.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “John Glascock”, its source revision and the description used here.
  2. Expand the search: follow John Glascock primary sources, John Glascock archive and John research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “John Glascock”?
  2. Which primary records establish identity, chronology and institutional ties?
  3. How has the subject’s reputation changed across later accounts?
Subject index

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Source & attribution

This entry incorporates text from “John Glascock” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.