# Marten Kalsbeek

> Dutch trade unionist

**Wikidata**: [Q18120053](https://www.wikidata.org/wiki/Q18120053)  
**Source**: https://4ort.xyz/entity/marten-kalsbeek


## References

1. [AlleFriezen. 1874](https://allefriezen.nl/zoeken/deeds/3f61ede1-9767-9d61-e1dc-60680e4a3ef9)
2. [AlleFriezen. 1904](https://allefriezen.nl/zoeken/deeds/6bfe6028-55d2-2448-8a84-384c1d257e5c)