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C+History
History · Clay Township

1 of Clay Township’s places is on the National Register

More historic than 44% of U.S. towns · #404 of 593 in Indiana. What drives it

Its Register listing is the Thompson Barnett House. Most of Clay Township was built recently: 8% of its homes predate 1940 and the median home dates from 1972. Below: maps from 1955 on and old-book passages.

1on the National Register
8%homes built before 1940
Quick answers

Where Clay Township’s name came from

How did Clay Township get its name?

Clay Township was named for Henry Clay, three-term Speaker of the House of Representatives and Secretary of State.

How historic is Clay Township?

C+

More historic than 44% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
History grade

What drives Clay Township’s History grade

On its age, its old homes and the National Register, Clay Township is more historic than 44% of U.S. towns, #404 of 593 in Indiana. Its National Register listings hold the grade up; its share of homes from before 1940 pulls it down.

C+
HistoryA character grade: shown, never part of Clay Township’s overall grade.
All U.S. towns we grade (21,289)Ahead of 44%
NewerOlder
Indiana towns of 2,500+ (593)Ahead of 32%

Indiana towns list more on the Register than most of the country (a typical Indiana town has 7.9 per 10,000 residents, the U.S. 2.4), so Clay Township’s 3.5 sits near the middle of its state (51% of Indiana towns have fewer) while its 1 listings outnumber those of 51% of U.S. towns.

How sure. Graded on two of the three inputs, so a change in either one moves the letter more than it would with three. The pre-1940 share is a Census survey estimate (±6.8 points).

Founding year: our sources. Homes: Census ACS 2020–24. National Register: National Park Service, May 2026 list; each listing counted once (boundary changes and added documentation belong to their listing), and a historic district counts its contributing buildings. How TownRatings grades history →

What stands out about Clay 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 Clay Township’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
0 of 10 decades. The empty ones are waiting for someone’s album.
Places that used to be

Lost post offices, old corners and burying grounds

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

Spring Creek
1851–1866
Adamsboro
1872–1905
18501940today
Hamlets and corners on the map
Adamsboro
1cemetery inside Clay Township
Bethel Methodist

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

The story

How Clay Township came to be

From Wikipedia’s history of Clay Township.

Read it all →

Clay Township was organized in 1832. It was named for Henry Clay, three-term Speaker of the House of Representatives and Secretary of State.

Thompson Barnett House was listed on the National Register of Historic Places in 1986.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Clay Township in 1886

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

Clay Township. — That all territory bounded by Eel Eiver south, west by range line dividing Eanges 1 and 2, on the east by range line dividing Eanges 2 and 3, on the north by the county line taking in the attached part, shall form and constitute Clay Township. — May 7, 1832.
History of Cass County, Indiana1886 · page 272Read the page →
Read the text

Clay Township. — That all territory bounded by Eel Eiver south, west by range line dividing Eanges 1 and 2, on the east by range line dividing Eanges 2 and 3, on the north by the county line taking in the attached part, shall form and constitute Clay Township. — May 7, 1832.

Text read by machine from the scan; it may contain errors.
The history of Methodism in Clay Township dates from about the year 1833, at which time Eev. Amasa Johnson visited the spai-se settlements of the township and began holding religious services in private dwellings. These meetings were held from time to time, and finally culminated in the organizatio…
History of Cass County, Indiana1886 · page 682Read the page →
Read the text

The history of Methodism in Clay Township dates from about the year 1833, at which time Eev. Amasa Johnson visited the spai-se settlements of the township and began holding religious services in private dwellings. These meetings were held from time to time, and finally culminated in the organization of a small class, among the early members of which were George Julian and wife and Mrs.

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.

Timeline

Clay Township, 1851 to 1955

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

  1. 19th century
  2. 1851Post officeThe Spring Creek post office opens
  3. 1866Post officeThe Spring Creek post office closes
  4. 1872Post officeThe Adamsboro post office opens
  5. 20th century
  6. 1905Post officeThe Adamsboro post office closes
  7. 1955On the mapFirst mapped by the U.S. Geological Survey
By decade

No old photos in the archives yet

Weddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.

Be the first to add onePhotograph a print flat, in daylight, no flash.
Add from your album
On the map

Clay Township on the map, 1955 to 1987

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

Clay Township on the 1955 USGS mapClay Township on the 1972 USGS mapClay Township on the 1987 USGS map1955Logansport sheet · 1:24,000

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

On the National Register

1 historic place in Clay 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
1986
Thompson Barnett House
Buildings

Architectural styles listings

Greek Revival1

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

Famous people

Famous people close to Clay Township

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

See all →
Stories next door

History across the town line

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

Questions about Clay Township’s history

How does Clay Township rank for history?

Clay Township is more historic than 44% of U.S. towns, #404 of 593 in Indiana. The History grade combines the town’s founding era, the share of homes built before 1940 and its National Register listings. It’s a character grade, so it isn’t part of the overall grade. How it works.

What is on the National Register in Clay Township?

One place: the Thompson Barnett House (listed 1986).

How old are the homes in Clay Township?

8% of Clay Township’s homes were built before 1940 (Census estimate, ±6.8 points), against a typical 14% for an Indiana town; the median home was built in 1972.

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).

From the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, 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.