# Greta Keller

> American singer (1903-1977)

**Wikidata**: [Q85177](https://www.wikidata.org/wiki/Q85177)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Greta_Keller)  
**Source**: https://4ort.xyz/entity/greta-keller


## References

1. Integrated Authority File
2. KALLIOPE Austria
3. Czech National Authority Database
4. International Standard Name Identifier
5. MusicBrainz
6. Discogs
7. Find a Grave
8. filmportal.de
9. BnF authorities
10. Freebase Data Dumps. 2013
11. National Library of Israel Names and Subjects Authority File
12. performing-arts.ch