28% of Franklin Township’s homes were built before 1940
Its Register listings are the Parr's Mill Covered Bridge No. 10, the Riegel Covered Bridge No. 6 and the Rohrbach Covered Bridge No. 24. Below: maps from 1984 on.
The Parr's Mill Covered Bridge No. 10, Riegel Covered Bridge No. 6, and Rohrbach Covered Bridge No. 24 was listed on the National Register of Historic Places in 1979.
The U.S. Geological Survey’s map of Franklin Township.
1984Sunbury sheet · 1:100,000
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Franklin Township.
On the National Register
3 historic places in Franklin Township
The country’s official list of buildings and places worth saving.
Founding dates: Wikidata, Wikipedia, the U.S. post office records of Blevins & Helbock (CC0) and the Census. Homes by year built: Census ACS 2020–24. National Register of Historic Places: National Park Service (list of May 22, 2026). Old photos, postcards and papers: Wikimedia Commons, the Library of Congress and other public archives, credited on each item’s page. Maps: U.S. Geological Survey historical topographic maps (via Esri) and Sanborn fire-insurance maps (Library of Congress). History text and census tables: Wikipedia (CC BY-SA 4.0). Places that used to be: USGS Geographic Names Information System (2021). How TownRatings grades history →
From Wikimedia Commons (6), the National Register of Historic Places (3), Wikipedia, U.S. Geological Survey historical maps and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.