# Olney

> home and farm complex located at Joppa, Harford County, Maryland

**Wikidata**: [Q7088446](https://www.wikidata.org/wiki/Q7088446)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Olney_(Joppa,_Maryland))  
**Source**: https://4ort.xyz/entity/olney-q7088446


## References

1. National Register of Historic Places
2. National Archives Catalog