# Marcus Haddock

> American opera singer and voice teacher (born 1957)

**Wikidata**: [Q41798514](https://www.wikidata.org/wiki/Q41798514)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Marcus_Haddock)  
**Source**: https://4ort.xyz/entity/marcus-haddock


## References

1. BnF authorities
2. MusicBrainz
3. [Source](https://viaf.org/viaf/data/viaf-20230206-links.txt.gz)
4. Library of Congress Authorities
5. National Library of Israel Names and Subjects Authority File