Every edition of the U.S. Geological Survey’s map of Cooke Township. Tap a year, or press play to watch the town change.
1919Newville 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 Cooke Township.
Jay Cooke was among the investors who in 1864 purchased the South Mountain Iron Company at Pine Grove Furnace, a charcoal-fired iron operation dating to 1764. The specific reason that Cooke Township was created in 1872 out of previously existing Penn Township (established 1860) is unclear. Jay Cooke lost the company in the Panic of 1873, but bought back a major portion of it four years later with a group of investors as the South Mountain Mining and Iron Company. He was still a co-owner at the time of his death. According to the biography by Oberholtzer (who Cooke and his family assisted), Jay Cooke visited Pine Grove Furnace repeatedly. Cooke fished for trout there—he was an avid outdoorsman throughout his life—and he annually brought gifts such as pocket knives and scissors to the small school established there for the workers' children. Cooke Township continues to this day as a very…
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 the National Register of Historic Places (1), Wikipedia, U.S. Geological Survey historical maps, U.S. Census counts (via Wikipedia), the US Post Offices dataset (Blevins & Helbock) and the USGS Geographic Names Information System. Archive images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.