# Bertha Tiggers

> Dutch soprano, 1889-1965

**Wikidata**: [Q119411037](https://www.wikidata.org/wiki/Q119411037)  
**Source**: https://4ort.xyz/entity/bertha-tiggers


## References

1. [Source](https://www.openarch.nl/saa:af819455-3faa-4f2f-bd99-cd4d774b43aa)
2. [Source](https://www.delpher.nl/nl/kranten/view?coll=ddd&identifier=KBNRC01:000034657:mpeg21:a0071)
3. [Stadsarchief Amsterdam](https://www.openarch.nl/saa:af819455-3faa-4f2f-bd99-cd4d774b43aa)
4. [Algemeen Dagblad](https://www.delpher.nl/nl/kranten/view?coll=ddd&identifier=KBNRC01:000034657:mpeg21:a0071)
5. [North Holland Archives](https://www.openarch.nl/nha:7afcb83d-251c-48cb-9310-3591ccd8eb81)