Baldwin’s post office opened in 1872, and 45% of its homes were built before 1940
Its Register listings are the Mill Rock School, the Henry Lubben House, Smokehouse and Springhouse and the Mrs. Margaret Sieben House. Its Register listings are the Mill Rock School, the Henry Lubben House, Smokehouse and Springhouse and the Mrs. Margaret Sieben House.
How Baldwin began
When was Baldwin founded?
The Baldwin post office opened in 1872, the earliest record of the town by name. Two smaller post offices, Cobb (1851) and Millrock (1860), opened inside today’s city and later closed.
3 historic places in Baldwin
The country’s official list of buildings and places worth saving.
Architectural styles listings
All 3 listings
National Park Service, National Register of Historic Places. Photos from Wikimedia Commons, credited on each place’s page.
Lost post offices and places now gone
Baldwin’s post office has been open since 1872. Two 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).
Questions about Baldwin’s history
What year was Baldwin founded?
The Baldwin post office opened in 1872, the earliest record of the town by name (U.S. post office records).
What is on the National Register in Baldwin?
Three places: the Mill Rock School (listed 1992), the Henry Lubben House, Smokehouse and Springhouse (1992) and the Mrs. Margaret Sieben House (1992).
Memory lane
What the archives can’t tell you, neighbors can.
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 the National Register of Historic Places (3), 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.