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B−History
History · Thornton

Thornton dates to 1763

More historic than 53% of U.S. towns · #115 of 126 in New Hampshire. What drives it

Most of Thornton was built recently: 9% of its homes predate 1940 and the median home dates from 1984. Below: 1 old photo or paper, maps from 1928 on, and the census since 1790.

1763founded
0on the National Register
9%homes built before 1940
1old photo or paper
5famous people
Quick answers

How Thornton began

When was Thornton founded?

1763

Thornton dates its founding to 1763 (Wikidata). It appears in the first U.S. census, 1790.

First census: 385 in 17902020 census: 2,708263 years

How historic is Thornton?

B−

More historic than 53% of U.S. towns, on its age, its old homes and the National Register.

What drives the grade ↓
Founding year: Wikidata. First post office: 1821.The full story ↓
History grade

What drives Thornton’s History grade

On its age, its old homes and the National Register, Thornton is more historic than 53% of U.S. towns, #115 of 126 in New Hampshire. Its age holds the grade up; its National Register listings pull it down.

B−
HistoryA character grade: shown, never part of Thornton’s overall grade.
All U.S. towns we grade (21,289)Ahead of 53%
NewerOlder
New Hampshire towns of 2,500+ (126)Ahead of 9%

New Hampshire towns list more on the Register than most of the country (a typical New Hampshire town has 9.5 per 10,000 residents, the U.S. 2.4), so Thornton’s 0.0 sits below most of its state (8% of New Hampshire towns have fewer) while its 0 listings outnumber those of 23% of U.S. towns.

NoteThe founding year comes from Wikidata alone; no second source gives 1763.
How sure. Graded on any two of the three inputs instead, the letter would range from C− to A−. The pre-1940 share is a Census survey estimate (±5.4 points).

Founding year: Wikidata (other dates in Quick answers). 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 Thornton’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 Thornton’s collection

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

Decades since 1900 with photos
00s10s20s30s40s50s60s70s80s90s
1 of 10 decades. The empty ones are waiting for someone’s album.
People over time

Thornton, census by census

05001,0001,5002,0002,5003,000180018501900195020001,049 in 1830Low: 459

Lost half of its people between 1830 and 1930, then grew 5-fold.

24 censuses, 1790–2020.

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

Timeline

Thornton, 1763 to 2020

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

  1. 18th century
  2. 1763
    FoundingThornton is established
  3. 19th century
  4. 1821Post officeThe Thornton post office opens
  5. 1828Born hereJeremiah Rankin is born here
  6. 1828Born hereBradley Varnum Sargent is born here
  7. 1848Born hereOrison Swett Marden is born here
  8. 1899Born hereBeatrice Gilman Proske is born here
  9. 20th century
  10. 1906Post officeThe Thornton post office closes
  11. 1928On the mapFirst mapped by the U.S. Geological Survey
  12. 1930In the archiveRainbow Falls, White Mt. Glacial Park, Thornton, N.H (87395)
  13. 21st century
  14. 2020CensusPopulation peaks at 2,708
The story

How Thornton came to be

From Wikipedia’s history of Thornton.

Read it all →

Thornton was granted on July 6, 1763, and incorporated on November 20, 1781. It is named for Doctor Matthew Thornton, a signer of the Declaration of Independence.

Text from Wikipedia, licensed CC BY-SA 4.0.

From the old history books

What they wrote about Thornton in 1904

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

Avery, Mar. 1861. She was the dau. of Stephen and Hannah (Mitchell) Avery, and was b. in Campton, and d. in Thornton, Sept., 1863. He m. (2) in 1865, Charlotte, dau. of Ephriam and Eliza (Broad) Elliot, b. Brownfield, Me., Jan. 11, 1848.
History of the town of Bristol, Grafton County, New Hampshire1904Read the page →
Read the text

Avery, Mar. 1861. She was the dau. of Stephen and Hannah (Mitchell) Avery, and was b. in Campton, and d. in Thornton, Sept., 1863. He m. (2) in 1865, Charlotte, dau. of Ephriam and Eliza (Broad) Elliot, b. Brownfield, Me., Jan. 11, 1848.

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

Thornton, decade by decade

One decade in the archive so far: the 1930s. Scroll each row; tap a photo for its story.

1940s–1990snothing yet
Nothing in the archives for these yearsWeddings on Main Street, storms, parades, school pictures, the old store. If it’s in your family album, it belongs here.
Add from your album
On the map

Thornton on the map, 1928 to 1995

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

Thornton on the 1928 USGS mapThornton on the 1931 USGS mapThornton on the 1980 USGS mapThornton on the 1995 USGS map1928Plymouth 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 Thornton.

Then & now

Stand where they stood

No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.

Rainbow Falls, White Mt. Glacial Park, Thornton, N.H (87395)
Retake this viewRainbow Falls, White Mt. Glacial Park, Thornton, N.H (87395), c. 1930

Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Thornton’s page.

Retake this view · +15
Famous people

5 famous people were born in Thornton

Writers, athletes, leaders and more, ranked by how widely they’re known.

See all →
Places that used to be

Lost post offices, old corners, places now gone and burying grounds

Thornton had its own post office from 1821 to 1906.

Thornton
1821–1906
18201920today
Hamlets and corners on the map
Goose Hollow
Gone or out of use
Thornton Civilian Conservation Corps Camplocale
2cemeteries and burying grounds inside Thornton
Mad RiverPine Grove

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 Thornton’s history

What year was Thornton founded?

In 1763, according to Wikidata. Thornton’s post office opened in 1821, and the first U.S. census counted 385 people here in 1790.

How does Thornton rank for history?

Thornton is more historic than 53% of U.S. towns, #115 of 126 in New Hampshire. 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.

How old are the homes in Thornton?

9% of Thornton’s homes were built before 1940 (Census estimate, ±5.4 points), against a typical 17% for a New Hampshire town; the median home was built in 1984.

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 Wikimedia Commons (5), Wikipedia, Wikidata and Wikipedia for famous people, 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.