# Michael Angelo O'Callaghan

> Anglo-Irish agricultural scientist (1868-1959)

**Wikidata**: [Q18912681](https://www.wikidata.org/wiki/Q18912681)  
**Source**: https://4ort.xyz/entity/michael-angelo-o-callaghan


## References

1. Calendars of the Grants of Probate and Letters of Administration. 1959