# Dennis Joseph O'Brien

> American politician in Massachusetts (1845-1912)

**Wikidata**: [Q106986887](https://www.wikidata.org/wiki/Q106986887)  
**Source**: https://4ort.xyz/entity/dennis-joseph-o-brien


## References

1. [Source](https://archives.lib.state.ma.us/handle/2452/204148)
2. [Source](https://archives.lib.state.ma.us/bitstream/handle/2452/795899/1888-House-01-Appendix%20.pdf)
3. Find a Grave
4. [Source](https://www.findagrave.com/memorial/191213839/dennis-j-o'brien)