# Robert M. Riddle

> American mayor (1812-1858)

**Wikidata**: [Q1277872](https://www.wikidata.org/wiki/Q1277872)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Robert_M._Riddle)  
**Source**: https://4ort.xyz/entity/robert-m-riddle


## References

1. [Source](http://webpmt.usps.gov/pmt003.cfm?PostOfficeName=Pittsburgh&stat_state_name=PENNSYLVANIA)
2. Google Knowledge Graph