# Willem Johannes Koopmans

> Dutch poet (1869-1953)

**Wikidata**: [Q13138651](https://www.wikidata.org/wiki/Q13138651)  
**Source**: https://4ort.xyz/entity/willem-johannes-koopmans


## References

1. [AlleFriezen. 1869](https://allefriezen.nl/zoeken/deeds/b121bf3d-7fe6-2a34-acb7-c0d89db41333)
2. [AlleFriezen. 1953](https://allefriezen.nl/zoeken/deeds/bfabf122-57e0-2cc5-e784-9bcb5855815d)
3. Virtual International Authority File