- Ashtabula County Airport - Airnav provides aeronautical and operational data including location, runways, radio aids, fuel services and maintenance facilities, and links to rentals and flight training.
www.airnav.com/airport/HZY
- Ashtabula County Airport - Provides general information about the airport.
www2.suite224.net/~redbaron
- Jefferson Chamber of Commerce - Provides community information and contacts, history of the village, and membership directory.
www.jeffersonchamber.com
- Map of Jefferson, Ohio - A 1901 panoramic map of the city.
memory.loc.gov/cgi-bin/query/r?ammem/gmd:@FILREQ(@field(SUBJ+@band(United+States--Ohio--Jefferson++Ashtabula+County++))+@FIELD(COLLID+citymap))
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