# Gustav Hájek
**Wikidata**: [Q111962141](https://www.wikidata.org/wiki/Q111962141)  
**Source**: https://4ort.xyz/entity/gustav-h-jek


## References

1. [Database of the Military Historical Archive](https://www.vuapraha.cz/legionari/26138)
2. birth registry of the Jewish Community of Vienna
3. Legie 100
4. Database of the Terezín Memorial
5. FactGrid