# Peter Ryan Stevens

> American geologist (1924-2011)

**Wikidata**: [Q112556351](https://www.wikidata.org/wiki/Q112556351)  
**Source**: https://4ort.xyz/entity/peter-ryan-stevens


## References

1. Czech National Authority Database
2. [Source](https://www.washingtonpost.com/local/obituaries/peter-r-stevens-geologist/2011/07/08/gIQApUJu5H_story.html)
3. Virtual International Authority File
4. [Source](https://www.legacy.com/us/obituaries/washingtonpost/name/peter-stevens-obituary?id=5972604)