United States Genealogy > Idaho
Idaho began as part of Oregon Territory. It became a separate territory in 1863, then encompassing most of what became Idaho, Montana, and Wyoming. Idaho was the 43rd state admitted to the Union, which occurred 3 July 1890.
The Idaho State Historical Society has a Library and Archives located at 2205 Old Penitentiary Road in Boise. They have a large collection of newspapers, photographs, and manuscripts relating to Idaho. They are open only Wednesday thru Saturday from 9 a.m. to 5 p.m. Their web site gives more information about their holdings. The Idaho State Historical Society also has published a new research guide. A link to that guide is on their home page.
You can find your villainous Idaho ancestors at Idaho Blacksheep Ancestors?
Extinct or Renamed Counties:
| Alturas | Logan |
- ↑ Idaho State Historical Society Reference Series, "Counties Which No Longer Exist", Number 11 available online
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