# Historical Society of Southern California

> historical society in California

**Wikidata**: [Q74144594](https://www.wikidata.org/wiki/Q74144594)  
**Source**: https://4ort.xyz/entity/historical-society-of-southern-california


## References

1. [Source](https://www.irs.gov/charities-non-profits/exempt-organizations-business-master-file-extract-eo-bmf)