Each edition grades its towns against each other only.
Most of Allegheny Township was built recently: 8% of its homes predate 1940 and the median home dates from 1991. Below: 6 old photos and papers, maps from 1907 on, and old-book passages.
Read from the archive, the National Register and the record. The page puts what stands out first.
Three other post offices opened and closed inside today’s town.
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
Every edition of the U.S. Geological Survey’s map of Allegheny Township. Tap a year, or press play to watch the town change.
U.S. Geological Survey historical topographic maps (public domain), via Esri’s collection of the scans. The red ring marks the center of Allegheny Township.
Wikipedia doesn’t have a history of Allegheny Township yet. The photos, dates and memories neighbors add here are how it gets written.
Allegheny Township is a township in Butler County, Pennsylvania, United States. The population was 624 at the 2020 census.
Between the 2010 and 2020 censuses its population fell from 641 to 620 (-3%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Passages that mention Allegheny Township, cut from the printed page as they were published.
son now live.s. Mrs. Coulter and her son Peter John lived on the Leason farm. John Coulter, afterward a Presbyterian minister, lived on the Layton place (now in Allegheny Township). James Coulter, his brother, was a tanner, and had the first tanyard in the settlement. Charles Pollock, father of Sheriff Pollock, settled in Allegheny Township. Eobei-t Cunningham settled where J. W. Johnston lives. He
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.
Woven from the archive, old maps, post office records, the National Register and the people born here.
In the archiveUniversity Park where 300 residence sites invite the home builder - the investor The wond…
In the archiveAllegheny Post Office
On the mapFirst mapped by the U.S. Geological Survey2 decades in the archive, from the 1890s to the 1900s. Scroll each row; tap a photo for its story.
No then-and-now pairs yet. Take a photo from the same spot as an old one and they appear here side by side.
Find the spot, match the angle, and add your photo. It becomes the first then-and-now pair on Allegheny Township’s page.
Retake this view · +15Nobody well known was born in Allegheny Township itself, so here are the best known from just nearby.
Most archives stop around 1920. The photos from after that are in family albums, not libraries.
Each neighbor’s History grade, on the same three inputs.
What the archives can’t tell you, neighbors can.
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 (4), the Library of Congress (6), 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.
1905
1905
1905
1905
2024
2024
2015
2014