# Hjalmar Thesen

> South african naturalist writer

**Wikidata**: [Q30005628](https://www.wikidata.org/wiki/Q30005628)  
**Source**: https://4ort.xyz/entity/hjalmar-thesen


## References

1. [Source](https://books.google.ru/books?id=hxuNRg9Pl9EC)
2. [Source](https://www.ancestry.com/search/categories/43/?name=_Thesen)
3. Virtual International Authority File