# John O'Sullivan

> British opera singer (1877–1955)

**Wikidata**: [Q21091795](https://www.wikidata.org/wiki/Q21091795)  
**Source**: https://4ort.xyz/entity/john-o-sullivan-q21091795


## References

1. [Source](http://www.historicaltenors.net/english/picture/osullivan8.jpg)
2. Virtual International Authority File
3. [Source](https://www.divainternational.ch/john-o-sullivan-1877-1955-heroic-irish-tenor.html)