Lost post offices, old corners, places now gone and burying grounds
Two other post offices opened and closed inside today’s town.
Elmore
1847–1936
French Grove
1866–1895
Laura
1888–today
18401930today
Hamlets and corners on the map
ElmoreLaura
Gone or out of use
Nightingale SchoolschoolScotland Schoolschool
3cemeteries and burying grounds inside Millbrook Township
CampbellFrench GroveGlendale
US Post Offices dataset (Blevins & Helbock, CC0). Places and cemeteries from the USGS Geographic Names Information System (2021).
The story so far
Millbrook Township, in brief
Wikipedia doesn’t have a history of Millbrook Township yet. The photos, dates and memories neighbors add here are how it gets written.
Millbrook Township is located in Peoria County, Illinois. As of the 2020 census, its population was 419 and it contained 192 housing units. As of the 2010 census, its population was 488 and it contained 197 housing units.
Between the 2010 and 2020 censuses its population fell from 488 to 419 (-14%).
Intro from Wikipedia. Population: U.S. Census Bureau.
Timeline
Millbrook Township, 1847 to 1936
Woven from the archive, old maps, post office records, the National Register and the people born here.
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 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.