# Gustaf Adolf Helsingius

> Finnish engineer and civil servant (1855–1934)

**Wikidata**: [Q5800084](https://www.wikidata.org/wiki/Q5800084)  
**Source**: https://4ort.xyz/entity/gustaf-adolf-helsingius


## References

1. BiographySampo
2. The National Biography of Finland
3. Finlandssvenska tekniker
4. KANTO
5. Virtual International Authority File
6. Uppslagsverket Finland
7. [LIBRIS. 2012](https://libris.kb.se/katalogisering/qn246zg82nmbw1d)