# Willem Henri van Helsdingen
**Wikidata**: [Q99852586](https://www.wikidata.org/wiki/Q99852586)  
**Source**: https://4ort.xyz/entity/willem-henri-van-helsdingen


## References

1. Source
2. [Digital Library for Dutch Literature](http://data.bibliotheken.nl/doc/dbnla/hels014)
3. Biografisch Woordenboek van Nederland 1880-2000
4. [Source](https://resolver.kb.nl/resolve?urn=MMKB06:000001732:pdf)
5. [Source](https://www.nationaalarchief.nl/onderzoeken/archief/2.10.36.22/invnr/940/file/NL-HaNA_2.10.36.22_940_0300)
6. [Nationaal Archief](https://www.nationaalarchief.nl/onderzoeken/archief/2.21.183.30)
7. [Source](https://www.nationaalarchief.nl/onderzoeken/archief/2.02.32/invnr/892ED.11/file/00064641.PDF?)
8. Virtual International Authority File
9. CiNii Research
10. Biografisch Portaal
11. [Source](https://resolver.kb.nl/resolve?urn=KBNRC01:000046315:mpeg21:a0018)