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 (formerly the Idaho State History Society Public Archives and Research Library or PARL) 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.
 * You can find your villainous Idaho ancestors at Idaho Blacksheep Ancestors.
 * Gretna Greens. When an Idaho couple's marriage is not in their home county, search for it in alternate places like Coeur d'Alene, Kootenai, Idaho, or West Wendover, Elko, Nevada.

Research Tools

 * Join the Facebook or Skype
 * Read a comprehensive research guide: BYU Research Outline for Idaho
 * Find in which county a town is, or locate a physical feature, by using the US Geographical Survey's Geographical Names Information System.
 * Look up Idaho county creation dates and parent counties.
 * See the Digital Atlas of Idaho for current maps and other interesting information about each of the counties of Idaho.
 * Ask how to find Idaho ancestors at the Western United States Research forum.
 * View historic Idaho maps in the David Rumsey Map Collection.
 * View digital materials such as photographs, newspaper clippings, government documents and sketches at the Idaho Digital Resources website.
 * Find other Idaho genealogy websites at Cyndi's List - Idaho.

Wiki articles describing online collections are found at:


 * Idaho Births and Christenings (FamilySearch Historical Records)
 * Idaho Deaths and Burial (FamilySearach Historical Records)
 * Idaho Marriatges (FamilySearch Historical Records)

Idaho counties
Extinct or Renamed Counties :


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

Help Expand the Wiki
In order to make this wiki a better research tool, we need your help! Many tasks need to be done. You can help by:

A wiki article describing an online collection is found at:


 * Idaho Births and Christenings (FamilySearch Historical Records)
 * Idaho, Cassia County Records (FamilySearch Historical Records)
 * Idaho, Clark County Records (FamilySearch Historical Records)
 * Idaho County Marriages (FamilySearch Historical Records)
 * Idaho Deaths and Burials (FamilySearch Histaorical Records)
 * Idaho Death Certificates (FamilySearch Historical Records)
 * Idaho Marriages (FamilySearch Historical Records)
 * Idaho, Teton County Records (FamilySearch Historical Records)