# Daniel O'Callaghan

> American firefighter (FDNY), first responder and victims of the September 11 attacks

**Wikidata**: [Q111966483](https://www.wikidata.org/wiki/Q111966483)  
**Source**: https://4ort.xyz/entity/daniel-o-callaghan-q111966483


## References

1. National September 11 Memorial & Museum
2. The New York Times