# Willem van der Ham

> Dutch geographer

**Wikidata**: [Q101440987](https://www.wikidata.org/wiki/Q101440987)  
**Source**: https://4ort.xyz/entity/willem-van-der-ham


## References

1. Integrated Authority File
2. Czech National Authority Database
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)