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History · Wilmington Township

Wilmington Township dates to 1836, and 2 of its places are on the National Register

Most of Wilmington Township was built recently: 10% of its homes predate 1940 and the median home dates from 1970. Below: old-book passages.

1836founded
2on the National Register
10%homes built before 1940
Photo: Anonymous · CC BY-SA 4.0
Quick answers

How Wilmington Township began

When was Wilmington Township founded?

1836

Wilmington Township dates its founding to 1836 (Wikidata). Its post office opened in 1837.

2020 census: 5,958190 years
Founding year: Wikidata. First post office: 1837.The full story ↓

What stands out about Wilmington Township’s past

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

★ What stands out · Help out

Start Wilmington Township’s collection

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

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

Wilmington Township, 1836 to 1905

Woven from the archive, old maps, post office records, the National Register and the people born here.

  1. 19th century
  2. 1836
    FoundingWilmington Township is established
  3. 1889Post officeThe Lorenzo post office opens
  4. 20th century
  5. 1905Post officeThe Lorenzo post office closes
The story

How Wilmington Township came to be

From Wikipedia’s history of Wilmington Township.

Read it all →

Before European settlers arrived, much of Illinois was inhabited by the Illinois Confederation, a coalition of related Native American tribes. Unlike today’s fixed borders, tribal territories often overlapped, with members from various groups sometimes living together in the same village. The Illiniwek, meaning ‘men’ in the Algonquian language, formed an alliance with the French, who adapted their name to the present-day ‘Illinois.’ The Illini Confederation’s territory extended from Iowa in the west to the Ohio River in the south, and approximately to the current borders with Indiana in the east and Wisconsin in the north. Their alliance with the French ultimately contributed to their decline, as the French lost control of the land to the British following the French and Indian War. The Miami tribe also inhabited northeastern Illinois. Other tribal names familiar to Illinois residents i…

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Wilmington Township in 1878

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

prairie. At the time of the first settlements in Channahon, much of it was timbered, and what is termed in other States, "open barrens." It lies in the western tier of townships, adjoining Grundy County, and is south of Troy and north of Wilmington Township, with a population in 1870, of 1,164 inha…
The history of Will County, Illinois, containing a history of the county ..1878 · page 591Read the page →
Read the text

prairie. At the time of the first settlements in Channahon, much of it was timbered, and what is termed in other States, "open barrens." It lies in the western tier of townships, adjoining Grundy County, and is south of Troy and north of Wilmington Township, with a population in 1870, of 1,164 inhabitants. The Illinois & Michigan Canal, and the Chicago, Pekin & Southwestern Railroad pass through the town, and afford excellent shipping facilities for the large amount of grain and stock annually produced by its enterprising citizens. Upon the whole, Channahon may be set down as one of the wealthy

Text read by machine from the scan; it may contain errors.
prairie. At the time of the first settlements in Channahon, much of it was timbered, and what is termed in other States, "open barrens." It lies in the western tier of townships, adjoining Grundy County, and is south of Troy and north of Wilmington Township, with a population in 1870, of 1,164 inha…
The history of Will County, Illinois, containing a history of the county ... a directory of its real estate owners1878 · page 591Read the page →
Read the text

prairie. At the time of the first settlements in Channahon, much of it was timbered, and what is termed in other States, "open barrens." It lies in the western tier of townships, adjoining Grundy County, and is south of Troy and north of Wilmington Township, with a population in 1870, of 1,164 inhabitants. The Illinois & Michigan Canal, and the Chicago, Pekin & Southwestern Railroad pass through the town, and afi"ord excellent shipping facilities for the large amount of grain and stock annually produced by its enterprising citizens. Upon the whole, Channahon may be set down as one of the wealthy

Text read by machine from the scan; it may contain errors.
at a distance of twenty-five miles were considered neighbors. Joseph Shoemaker, though mentioned here as a member of this settlement or colony, did not in reality settle in Jackson Township. He is usually accredited as the first settler of Wilmington Township ; but this, too, seems to be an error, …
The history of Will County, Illinois, containing a history of the county ..1878 · page 541Read the page →
Read the text

at a distance of twenty-five miles were considered neighbors. Joseph Shoemaker, though mentioned here as a member of this settlement or colony, did not in reality settle in Jackson Township. He is usually accredited as the first settler of Wilmington Township ; but this, too, seems to be an error, as his cabin was just on the north side of the line subsequently located between Wilmington and Channahon. Reed, with the balance of his family, removed from the township more than twenty-five years ago, and while the country was yet indeed new. George Kirkpatrick and brother and James Hemphill lacked but a few months of being

Text read by machine from the scan; it may contain errors.
Wilmington Township is a full Congressional town, consisting of thirty-six whole sections, and is bounded on the north by Channahon, on the east by Florence, on the south by Reed, Custer and Wesley, and on the west by Grundy County. The surface is gently undulating, and is covered in the vicinity o…
The history of Will County, Illinois, containing a history of the county ... a directory of its real estate owners1878 · page 452Read the page →
Read the text

Wilmington Township is a full Congressional town, consisting of thirty-six whole sections, and is bounded on the north by Channahon, on the east by Florence, on the south by Reed, Custer and Wesley, and on the west by Grundy County. The surface is gently undulating, and is covered in the vicinity of the river with timber. Some of the timber along the bank is of a good quahty and heavy growth, but at a distance from the stream it consists of small and seemingly stunted oak, unfit for much else than railroad ties and firewood. The township is crossed from southeast to northwest by the Kankakee, one of the

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 National Register

2 historic places in Wilmington Township

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

places listed
2
National Historic Landmarks
0
none yet
historic buildings protected
2
each building in a district counts

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 and places now gone

Another post office, Lorenzo, opened and closed inside today’s town.

Hamlets and corners on the map
Lorenzo
Gone or out of use
Bardwell MinemineHunter MinemineKankakee Bridge StationlocaleKeeversville SchoolschoolMurphy, Linskey And Kasher Number 4 MineminePit 1 Northern MineminePit 1C Northern MineminePit 2 Northern MineminePit 3 Northern MineminePrairie Creek SchoolschoolRiley SchoolschoolSchoonmaker MinemineTierney Schoolschool

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.

Questions about Wilmington Township’s history

What year was Wilmington Township founded?

In 1836, according to Wikidata. Wilmington Township’s post office opened in 1837.

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, 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.