# Johan August Udden

> American geologist

**Wikidata**: [Q6218606](https://www.wikidata.org/wiki/Q6218606)  
**Source**: https://4ort.xyz/entity/johan-august-udden


## References

1. [Source](https://www.jsg.utexas.edu/npl/history/geologists/johan-a-udden-1859-1932/)
2. IdRef
3. [Source](https://www.augustana.edu/academics/notable-faculty/udden-johan)
4. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
5. Virtual International Authority File