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History · Chemung

Chemung’s post office opened in 1845, and 29% of its homes were built before 1940

Below: maps from 1932 on and old-book passages.

1845first post office
0on the National Register
29%homes built before 1940
Quick answers

How Chemung began

When was Chemung founded?

1845

The Chemung post office opened in 1845, the earliest record of the town by name.

2020 census: 276181 years
Founding year: the first Chemung post office (Blevins & Helbock, CC0).The full story ↓

What stands out about Chemung’s past

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

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Start Chemung’s collection

The first neighbors to add old photos shape how Chemung’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 Chemung came to be

From Wikipedia’s history of Chemung.

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A post office called Chemung was established in 1845, and remained in operation until it was discontinued in 1943. The name Chemung is comes from the word in the Seneca language meaning "big horn" after a large horned fossil was discovered in a nearby river.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Chemung, 1885–1922

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

Chemung Precinct. — June 7, 1848. "Ordered by the court, That township 46 north, range 5 east, be, and is hereby, constituted an election precinct by the name of Chemung; that the elections in paid precinct be held at the Parker's Hotel, in the village of Chemung, and that Daniel P. Hutchinson, Dan…
History of McHenry County, Illinois1885 · page 196Read the page →
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Chemung Precinct. — June 7, 1848. "Ordered by the court, That township 46 north, range 5 east, be, and is hereby, constituted an election precinct by the name of Chemung; that the elections in paid precinct be held at the Parker's Hotel, in the village of Chemung, and that Daniel P. Hutchinson, Daniel Baker and ffm. Hart, Jr., be appointed judges."

Text read by machine from the scan; it may contain errors.
ORIGIN" OF NAME The name Chemung was given the village of Chemung before the township was organized, by a Mr. Steward who came from Chemung County. X. V., and he desired to name the place after his old home.
History of McHenry County, Illinois1922Read the page →
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ORIGIN" OF NAME The name Chemung was given the village of Chemung before the township was organized, by a Mr. Steward who came from Chemung County. X. V., and he desired to name the place after his old home.

Text read by machine from the scan; it may contain errors.
Not till after the village of Chemung had become a point of business and this township was pretty well settled did it receive a name. It is understood that Chemung Village was named by a Mr. Seward, who came from Chemung County, N. Y., and the township was afterward named for the village.
History of McHenry County, Illinois1885Read the page →
Read the text

Not till after the village of Chemung had become a point of business and this township was pretty well settled did it receive a name. It is understood that Chemung Village was named by a Mr. Seward, who came from Chemung County, N. Y., and the township was afterward named for the village.

Text read by machine from the scan; it may contain errors.
In Chemung Township the first school was taught in the village of Chemung about INK). In 1880 the number of persons of school age in the township was UTS, or ninety more than any township within the county. It paid at that date next to the highesl wages for teachers of any of the townships. The sch…
History of McHenry County, Illinois1922Read the page →
Read the text

In Chemung Township the first school was taught in the village of Chemung about INK). In 1880 the number of persons of school age in the township was UTS, or ninety more than any township within the county. It paid at that date next to the highesl wages for teachers of any of the townships. The school property of seven schoolhouses was then valued at $16,500. The first school in Harvard was taught in 1859; -I. E. Young was the first principal, assisted by .Miss Mary Ballon.

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

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On the map

Chemung on the map, 1932 to 1970

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

Chemung on the 1932 USGS mapChemung on the 1970 USGS map1932Harvard 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 Chemung.

Famous people

Famous people close to Chemung

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

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Questions about Chemung’s history

What year was Chemung founded?

The Chemung post office opened in 1845, the earliest record of the town by name (U.S. post office records).

Memory lane

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

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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 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.