# Otto Ehrhardt

> German photographer and teacher, 1869-1942

**Wikidata**: [Q41743738](https://www.wikidata.org/wiki/Q41743738)  
**Source**: https://4ort.xyz/entity/otto-ehrhardt


## References

1. RKDartists
2. Catalog of the German National Library
3. Faceted Application of Subject Terminology
4. Union List of Artist Names
5. Open Library
6. Artnet
7. Répertoire des artistes
8. NUKAT