# Helenus Johannes Boldingh

> naval officer

**Wikidata**: [Q75288619](https://www.wikidata.org/wiki/Q75288619)  
**Source**: https://4ort.xyz/entity/helenus-johannes-boldingh


## References

1. [Het Vaderland. 1954](https://resolver.kb.nl/resolve?urn=MMKB19:000839096:mpeg21:a00098)
2. Wie is dat? (1948)
3. [Source](https://www.nationaalarchief.nl/onderzoeken/archief/2.12.14/invnr/42/file/NL-HaNA_2.12.14_42_0117)
4. [Source](https://resolver.kb.nl/resolve?urn=MMKB08:000171697:mpeg21:a0001)
5. [Source](https://www.nationaalarchief.nl/onderzoeken/archief/2.12.14/invnr/42/file/NL-HaNA_2.12.14_42_0116)
6. [Source](https://www.nationaalarchief.nl/onderzoeken/archief/2.02.32/invnr/890ED.13/file/00016291.PDF?)
7. data.bibliotheken.nl
8. Virtual International Authority File