# George H. Billingsley

> Cartographer

**Wikidata**: [Q57911676](https://www.wikidata.org/wiki/Q57911676)  
**Source**: https://4ort.xyz/entity/george-h-billingsley


## References

1. [Geologic Field Photograph Map of the Grand Canyon Region, 1967–2010](https://pubs.usgs.gov/gip/0189/gip189.pdf)
2. Faceted Application of Subject Terminology
3. Virtual International Authority File
4. National Library of Israel Names and Subjects Authority File