# Frederick Mayer

> American spy

**Wikidata**: [Q5498373](https://www.wikidata.org/wiki/Q5498373)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Frederick_Mayer_(spy))  
**Source**: https://4ort.xyz/entity/frederick-mayer


## References

1. IdRef
2. [Source](https://historygreatest.com/frederick-mayer-german-born-american-spy-died-at-94)
3. [Source](http://www.wvgazettemail.com/article/20160415/GZ01/160419628)
4. KB, nationale bibliotheek
5. Dutch National Thesaurus for Author Names