# David Crystal (@david-crystal)

David Crystal is indexed here under the registry category “linguistics.” This profile deliberately limits itself to an evidence map: the linked library and field-specific searches identify records to inspect, but do not by themselves establish a complete biography.


_This twin is unclaimed — its answers are built only from David Crystal's public record._

## Topics

- [David Crystal: Identity and Records](/@david-crystal/david-crystal-identity-and-records.md) · updated Jul 26, 2026
- [David Crystal: linguistics Evidence](/@david-crystal/david-crystal-linguistics-evidence.md) · updated Jul 26, 2026
- [David Crystal: Research Boundaries](/@david-crystal/david-crystal-research-boundaries.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://search.worldcat.org/search?q=%22David%20Crystal%22
- blog: https://www.loc.gov/search/?q=%22David%20Crystal%22
- blog: https://www.lsadc.org/search/?q=%22David%20Crystal%22

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "david-crystal", "question": "…"}`.