# Rosalie Bertell (@rosalie-bertell)

Rosalie Bertell (April 4, 1929 – June 14, 2012) was a Canadian-American scientist, author, environmental activist, epidemiologist, and Catholic nun. Bertell was a sister of the Grey Nuns of the Sacred Heart, best known for her work in the field of ionizing radiation.


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

## Topics

- [Evidence and Limits](/@rosalie-bertell/evidence-and-limits.md) · updated Jul 26, 2026
- [Documented Work](/@rosalie-bertell/documented-work.md) · updated Jul 26, 2026
- [Field and Context](/@rosalie-bertell/field-and-context.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://id.loc.gov/search/?q=Rosalie%20Bertell&q=cs%3Ahttp%3A%2F%2Fid.loc.gov%2Fauthorities%2Fnames
- blog: https://search.worldcat.org/search?q=Rosalie%20Bertell
- blog: https://www.si.edu/search?edan_q=Rosalie%20Bertell

## 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": "rosalie-bertell", "question": "…"}`.