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History · Dennis

Dennis’ post office opened in 1881, and 26% of its homes were built before 1940

Below: maps from 1945 on and old-book passages.

1881first post office
0on the National Register
26%homes built before 1940
Quick answers

How Dennis began

When was Dennis founded?

1881

The Dennis post office opened in 1881, the earliest record of the town by name.

2020 census: 152145 years
Founding year: the first Dennis post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Dennis’ past

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

★ What stands out · Help out

Start Dennis’s collection

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

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

How Dennis came to be

From Wikipedia’s history of Dennis.

Read it all →

Dennis had its start in the early 1880s by the building of the Memphis, Kansas and Colorado Railroad through that territory. The first post office in Dennis was established in May 1881.

The nearby Big Hill Archeological District is on the National Register of Historic Places.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Dennis in 1901

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

The first house in Dennis was the railroad' depot, erected in the fall of 1880. In the spring of 1881 William Current put up a store building, in which he placed a stock of groceries; this was the first store in town. John Webb and John Milligan put in another store in the spring of 1882, their sto…
History of Labette County, Kansas1901 · page 121Read the page →
Read the text

The first house in Dennis was the railroad' depot, erected in the fall of 1880. In the spring of 1881 William Current put up a store building, in which he placed a stock of groceries; this was the first store in town. John Webb and John Milligan put in another store in the spring of 1882, their stock consisting of general merchandise. A second stock of

Text read by machine from the scan; it may contain errors.
Dennis. — As soon as this denomination completed its home of worshij) in Dennis, in 1887, a Sunday-school was organized with J.
History of Labette County, Kansas1901 · page 315Read the page →
Read the text

Dennis. — As soon as this denomination completed its home of worshij) in Dennis, in 1887, a Sunday-school was organized with J.

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

Dennis, decade by decade

On the map

Dennis on the map, 1945 to 1973

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

Dennis on the 1945 USGS mapDennis on the 1973 USGS map1945Parsons 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 Dennis.

Famous people

Famous people close to Dennis

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

See all →

Questions about Dennis’ history

What year was Dennis founded?

The Dennis post office opened in 1881, 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 →
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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 (3), Wikipedia, U.S. Geological Survey historical maps 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.