# Johannes Olpp

> missionary (1837-1920)

**Wikidata**: [Q94859848](https://www.wikidata.org/wiki/Q94859848)  
**Source**: https://4ort.xyz/entity/johannes-olpp


## References

1. Catalog of the German National Library
2. Virtual International Authority File
3. [Source](https://www.koeppe.de/autor_johannes-olpp)