# R. E. O'Callaghan

> English activist and writer (1855–1936)

**Wikidata**: [Q124100760](https://www.wikidata.org/wiki/Q124100760)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/R._E._O'Callaghan)  
**Source**: https://4ort.xyz/entity/r-e-o-callaghan


## References

1. [Source](https://www.freebmd.org.uk/cgi/information.pl?cite=H3xw9Om%2BaFwtsRchTNEGRw&scan=1)
2. [Source](https://www.freebmd.org.uk/cgi/information.pl?cite=zz12xab%2FB92vkhrBG%2FXBag&scan=1)