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Fort Jennings Memorial HallPhoto: Nyttend · Public domain
–Not graded
History · Fort Jennings

Fort Jennings’ post office opened in 1839, and 32% of its homes were built before 1940

Below: maps from 1911 on and the census since 1880.

1839first post office
0on the National Register
32%homes built before 1940
Photo: Nyttend · Public domain
Quick answers

How Fort Jennings began

When was Fort Jennings founded?

1839

The Fort Jennings post office opened in 1839, the earliest record of the town by name.

First census: 164 in 18802020 census: 525187 years
Founding year: the first Fort Jennings post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Fort Jennings’ past

Read from the archive, the National Register and the record. The page puts what stands out first.

★ What stands out · Help out

Start Fort Jennings’s collection

The first neighbors to add old photos shape how Fort Jennings’s history is told.

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
On the map

Fort Jennings on the map, 1911 to 1973

Every edition of the U.S. Geological Survey’s map of Fort Jennings. Tap a year, or press play to watch the town change.

Fort Jennings on the 1911 USGS mapFort Jennings on the 1944 USGS mapFort Jennings on the 1960 USGS mapFort Jennings on the 1973 USGS map1911Delphos sheet · 1:62,500

U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Fort Jennings.

The story

How Fort Jennings came to be

From Wikipedia’s history of Fort Jennings.

Read it all →

The first settlement in Fort Jennings was made around 1850. Fort Jennings took its name from Col. William Jennings, who established a fort near the site in 1812. The village was founded in 1847 and incorporated in 1881.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Fort Jennings in 1880

Passages that mention Fort Jennings, cut from the printed page as they were published.

The town of Fort Jennings was laid out by H. J. Boehmer and takes its name, as well as the township, from Colonel Jennings, who was the commandant of the fort—a small stockade, enclosing about one acre of ground, on the west bank of the river, and below the bridge. There was then a fine spring on t…
History of Putnam County Ohio1880 · page 195Read the page →
Read the text

The town of Fort Jennings was laid out by H. J. Boehmer and takes its name, as well as the township, from Colonel Jennings, who was the commandant of the fort—a small stockade, enclosing about one acre of ground, on the west bank of the river, and below the bridge. There was then a fine spring on the river within the enclosure, which .was occupied in the war of 1812 as a military post.

Text read by machine from the scan; it may contain errors.

Scans and text from the Internet Archive. Books published in 1930 or earlier, which are in the public domain.

By decade

Fort Jennings, decade by decade

People over time

Fort Jennings, census by census

010020030040050060018801900192019401960198020002020Peak: 538

Between 164 and 538 people in every census since 1880.

15 censuses, 1880–2020.

U.S. Census Bureau decennial counts, from the census table on Fort Jennings’ Wikipedia page.

Famous people

Famous people close to Fort Jennings

Nobody well known was born in Fort Jennings itself, so here are the best known from just nearby.

See all →
Places that used to be

Places now gone and burying grounds

Fort Jennings’s post office has been open since 1839.

Gone or out of use
Fort Jenningsmilitary
1cemetery inside Fort Jennings
Saint Josephs

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

Questions about Fort Jennings’ history

What year was Fort Jennings founded?

The Fort Jennings post office opened in 1839, the earliest record of the town by name (U.S. post office records).

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 Wikimedia Commons (7), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock), the USGS Geographic Names Information System and old county and town histories (Internet Archive). Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.