How to track a lost place
- Search above with variant spellings (Beechtree vs. Beech Tree).
- Open Caldwell's 1878 atlas for township context.
- Check cemetery indexes & church lists within the township.
Browse every township and borough, search historic place names, and jump to maps and records for that location.
Your quick primer to Jefferson County places, timelines, and where records likely live.
Use the search at the top of this page. It recognizes variants via our
places.js dataset (hamlets, post offices, and nicknames).
If search isn’t available, browse the township and borough lists above.
Click a township to view churches, cemeteries, maps, and record tips. (Links point to your township pages/anchors.)
Clarion corridor - rafting & early mills
Northeast farms & early schools
South-central 1850s formation
Summerville area - rifle company lore
Sigel & Howe - lumbering era
Mount Pleasant - early industries
Northwest - first county murder (hist.)
Big Run & coal patch history
Knox Dale - gas & coal
Eleanora mines & coke works
Sprankle Mills & early churches
Mahoning valley settlements
Port Barnett & early rafting
Dixon lineage & reunions
South - pioneer settlers
Worthville - militia history
County Home - Belleview
Brockway corridor - coal & rail
Corsica - Rossevile Grays
Richardsville - Jericho
Beechwoods & Hazen
Reynoldsville & Sykesville
Punxsutawney & Walston
| Township | Earliest PO | Peak Postal Years | # of Localities | Primary Industry (19th c.) |
|---|
Coal patches, vanished mills, or renamed communities that appear in older records.
Jefferson County was created 26 March 1804 from Lycoming County. For court business it was attached to Westmoreland (1804-1806) and then Indiana County (1806-1830) until fully organized. When a record is missing, check those attachments and adjacent counties.