Idaho, United States Genealogy

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Origin of 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.

Did you know
The Idaho State Archives is located at 2205 Old Penitentiary Road in Boise. They have a large collection of newspapers, photographs, and manuscripts relating to Idaho. The Research Center for the Archives is open Tuesday thru Saturday from 10 a.m. to 4 p.m. Their web site gives more information about their holdings. The Idaho State Archives (under their former name, Idaho State Historical Society) also has published a research guide. A link to that guide is on their home page.

You can find your villainous Idaho ancestors at Idaho Blacksheep Ancestors?

Research Tools

 * Find the county a town is in, or locate a physical feature, by using the United States Geographical Survey's Geographical Names Information System.
 * Idaho county creation dates and parent counties.
 * The Digital Atlas of Idaho has current maps and other interesting information about each of the counties of Idaho, although many towns are left off the maps.
 * Ask a question about how to find Idaho ancestors at the Western United States Research forum!
 * View historic Idaho maps in the David Rumsey Map Collection.
 * Find other Idaho genealogy websites at Cyndi's List - Idaho.

Idaho counties
Extinct or Renamed Counties :


 * Alturas -- 1864-1895.
 * Logan -- 1889-1895.

Help Expand the Wiki
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