# John O'Callaghan

> United States Army Medal of Honor recipient

**Wikidata**: [Q6250790](https://www.wikidata.org/wiki/Q6250790)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/John_O'Callaghan_(Medal_of_Honor))  
**Source**: https://4ort.xyz/entity/john-o-callaghan-q6250790