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–Not graded
History · Isabel Township

13% of Isabel Township’s homes were built before 1940

Its Register listing is the Duncan Mills Bridge.

1on the National Register
13%homes built before 1940
Add an old photoShare a memory
On the National Register

1 historic place in Isabel Township

The country’s official list of buildings and places worth saving.

place listed
1
National Historic Landmarks
0
none yet
historic buildings protected
1
each building in a district counts
first listed
1980
Duncan Mills Bridge
Duncan Mills Bridge
Structures

Architectural styles listings

Parker1
All 1 listings
Duncan Mills BridgeStructure · listed 1980

National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.

Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Two other post offices opened and closed inside today’s town.

Otto
1847–1903
Duncans Mills
1858–1905
18401930today
Hamlets and corners on the map
Duncan MillsOtto
Gone or out of use
Duncan Mills BridgebridgeDuncan Mills SchoolschoolFish SchoolschoolFoutch SchoolschoolGraham SchoolschoolNailrod SchoolschoolOtto SchoolschoolWild Goose Schoolschool
4cemeteries and burying grounds inside Isabel Township
FoutchFreemanKearneyOtto

US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).

Stories next door

History across the town line

Each neighbor’s History grade, on the same three inputs.

Waterford Township3 historic placesnot graded: under 1,000 residents or part of its townKerton TownshipIts storynot graded: under 1,000 residents or part of its townPleasant TownshipIts storynot graded: under 1,000 residents or part of its townHavana Township2 historic placesA−Havana2 historic placesA

Questions about Isabel Township’s history

What is on the National Register in Isabel Township?

One place: the Duncan Mills Bridge (listed 1980).

Memory lane

What the archives can’t tell you, neighbors can.

Town Square →
Start a conversation
Sources

Where this page comes from

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 the National Register of Historic Places (1), the US Post Offices dataset (Blevins & Helbock) 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.