# Sidney L. Groff

> American geologist

**Wikidata**: [Q131179837](https://www.wikidata.org/wiki/Q131179837)  
**Source**: https://4ort.xyz/entity/sidney-l-groff


## References

1. [Source](https://www.stategeologists.org/sites/default/files/remembrance/Sidney-L-Groff-1919-2011.pdf)
2. [Source](https://dailyinterlake.com/news/2011/jan/28/sidney-l-sid-groff-91-6/)
3. [Source](https://web.archive.org/web/20161222131459/https://il.water.usgs.gov/highlights/jwp_awardees.pdf)