# Lionel Mapleson

> Librarian of the Metropolitan Opera

**Wikidata**: [Q10318839](https://www.wikidata.org/wiki/Q10318839)  
**Source**: https://4ort.xyz/entity/lionel-mapleson


## References

1. The New York Times
2. Find a Grave
3. Faceted Application of Subject Terminology
4. Geni.com