# Calman Hakker

> Dutch pianist and Holocaust victim, 1912–1943

**Wikidata**: [Q125338113](https://www.wikidata.org/wiki/Q125338113)  
**Source**: https://4ort.xyz/entity/calman-hakker


## References

1. [Source](https://www.openarchieven.nl/hga:80F2048C-B0F1-4C24-BCBD-2B4D240200F6)
2. Source
3. [Holocaust persons database](https://www.ushmm.org/online/hsv/person_view.php?PersonId=12669558)
4. [KB, nationale bibliotheek](https://www.openarchieven.nl/kbd:0702814a-9e61-ca89-5174-e807a007c692)
5. [Nationaal Archief](https://www.openarchieven.nl/ghn:60678a6e-a136-11e8-828a-00505693001d)
6. [Nationaal Archief](https://www.openarchieven.nl/ghn:175cb528-d2d8-11e8-828a-00505693001d)
7. [Haags Gemeentearchief](https://www.openarchieven.nl/hga:80F2048C-B0F1-4C24-BCBD-2B4D240200F6)
8. Holocaust persons database