# Joseph J. Leonard

> Boston police commisioner

**Wikidata**: [Q50889775](https://www.wikidata.org/wiki/Q50889775)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Joseph_J._Leonard)  
**Source**: https://4ort.xyz/entity/joseph-j-leonard


## References

1. [Source](https://archives.lib.state.ma.us/bitstream/handle/2452/796052/1905-House-01-Appendix.pdf)
2. [Source](https://archive.org/details/souvenirofmassac1905brid)
3. [Source](https://archive.org/details/manualforuseofge1904mass)
4. [Source](https://archive.org/details/souvenirofmassac1904brid)
5. Massachusetts Legislative Biography File
6. [Source](https://archives.lib.state.ma.us/bitstream/handle/2452/796049/1904-House-01-Appendix.pdf)