




A history of Monongahela,
since 1770
Postcards, papers and photographs of Monongahela from public archives, woven together by decade. Neighbors fill in the gaps.
The story
from WikipediaRead it all ↗Monongahela was founded in 1769 on a tract of land near the confluence of Pigeon Creek and the Monongahela River. It is the oldest settlement in the Monongahela River Valley and most likely the oldest in Washington County. The word Monongahela is Native American in origin, meaning "falling banks". The Monongahela tribe was also indigenous to the area prior to the settlement of the city.
Text from Wikipedia, licensed CC BY-SA 4.0.
Timeline
built from the dates on the items belowFinish Monongahela’s story
Most archives stop around 1920. The photos from after that are in family albums, not libraries.
3 of 10 decades since 1900 have photos 🔁Retake an old view1940 Census Enumeration District …, 1880: stand where they stood+15 📦Share a family photoSign in to add one+10Famous people from Monongahela
See all 24 →Monongahela, decade by decade
1980s
4 historic places in Monongahela
4 places in Monongahela are on the National Register of Historic Places, the country’s official list of buildings and places worth saving. One is a National Historic Landmark, the highest tier, which fewer than 3% of listings reach.
Where they are
Architectural styles
When they were listed
Then & now

No then-and-now pairs yet. Take a photo from the same spot as 1940 Census Enumeration District Maps - Pennsylvania - Washington County - Monongahela - ED 63-95, ED 63-96, ED 63-97, … (1880) and it appears here side by side.
🔁 Retake this view · +15Stories next door
nearby towns’ historyFrom Wikimedia Commons (11) and the National Register (1). Images are copied here with their credits and licenses, shown on each photo’s page. Refreshed monthly.












