# Leonard Warren

> American operatic baritone (1911-1960)

**Wikidata**: [Q560546](https://www.wikidata.org/wiki/Q560546)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Leonard_Warren)  
**Source**: https://4ort.xyz/entity/leonard-warren


## References

1. Integrated Authority File
2. Archivio Storico Ricordi
3. BnF authorities
4. Find a Grave
5. International Standard Name Identifier
6. MusicBrainz
7. IMDb
8. [Source](https://archives.nypl.org/mus/20405)
9. Encyclopædia Britannica Online
10. SNAC
11. Discogs
12. Freebase Data Dumps. 2013
13. Virtual International Authority File
14. [Source](http://digitale.beic.it/primo_library/libweb/action/search.do?fn=search&vid=BEIC&vl%283134987UI0%29=creator&vl%28freeText0%29=Warren%20Leonard)
15. Autoritats UB
16. Carnegie Hall linked open data
17. LIBRIS. 2018