# Frederick Charles Hay
**Wikidata**: [Q77573257](https://www.wikidata.org/wiki/Q77573257)  
**Source**: https://4ort.xyz/entity/frederick-charles-hay


## References

1. Integrated Authority File
2. Catalog of the German National Library
3. [Source](https://www.helveticarchives.ch/detail.aspx?ID=1206204)