Open main menu

Gilliam County, Oregon Genealogy

Guide to Gilliam County, Oregon ancestry, family history, and genealogy birth records, marriage records, death records, census records, family history, and military records.


Gilliam County, Oregon
Map of Oregon highlighting Gilliam County
Location in the state of Oregon
Map of the U.S. highlighting Oregon
Location of Oregon in the U.S.
Founded February 17, 1899
County Seat Condon
Address Gilliam County Courthouse
221 South Oregon Street
Condon, Or 97823
Phone: 541-384-2311
Gilliam County Website

County InformationEdit


The County was named for Cornelius Gilliam, who commanded the forces of the provisional government of Oregon after the Whitman Massacre. The County is located in the north central area of the state. [1]

County Courthouse


County Clerk has marriage, divorce,
probate, court and land records from 1885.[2]

Gilliam County, Oregon Record DatesEdit

Known Beginning Dates for Major County Records[3]
Birth* Marriage Death* Court Land Probate Census
1903 1885 1912 1885 1885 1885 1845
Statewide registration for births and deaths in 1903. General compliance year unknown.

Record LossEdit

There is no known history of courthouse disasters in this county.

Boundary ChangesEdit

17 Feb 1899: Parts were taken to form Wheeler County.

For animated maps illustrating Oregon County boundary changes, "Rotating Formation Oregon County Boundary Maps" (1843-1975) may be viewed for free at the website.

Populated PlacesEdit

For a complete list of populated places, including small neighborhoods and suburbs, visit HomeTown Locator

The following are the most historically and genealogically relevant populated places in this county:[4]

Unincorporated communities
Ghost towns

Defunct Post OfficesEdit

  • Ajax: Ajax is a locality about 16 miles airline northwest of Condon, between Ferry and Devils canyons. It supported a post office at one time, but now there is not much in the place. The office operated intermittently from 1888 to 1921. There is a story to the effect that a cowboy named Gardner volunteered to carry the mail for the new office, without pay, and that he suggested it be named after the steamer Ajax. Gardner had come to Oregon from California on that ship and had a sentimental interest in the name. FamilySearch Catalog

Neighboring CountiesEdit

Morrow | Sherman | Wasco | Wheeler | Klickitat County, Washington State

Trivia TidbitsEdit

Information about localities, too small or too brief to describe in separate pages. Exception to this are Post Offices. > Trivia Tidbits



Tombstone Transcriptions Online Tombstone Transcriptions in Print List of Cemeteries in the county Family History Library
ORGenWeb WorldCat Billion Graves
ORGenWeb Archives
Tombstone Project
Billion Graves
See Oregon Cemeteries for more information.


  • 1890
  • 1900
  • 1910
  • 1920
  • 1930

Church History and RecordsEdit

Court RecordsEdit



Land and PropertyEdit




Early migration routes to and from Gilliam County, Oregon Genealogy for European and African American settlers included:

Military History and RecordsEdit

Civil WarEdit
World War IEdit


Oregon Online Historical Newspapers - identifies historical archived and digitized newspapers available online on both free and pay-to-access websites.

Probate RecordsEdit

Online Records

Rivers and WaterwaysEdit

Details about the rivers and waterways where farms and settlements are often found along them. >> Rivers and Waterways


Vital RecordsEdit

See also How to order Oregon Vital Records, order electronically online or download an application for Oregon Birth Certificate, Marriage Certificate, Divorce Certificate, Death Certificate Application to mail.

Birth RecordsEdit

Delayed Birth Certificates

Birth Registers

Marriage RecordsEdit

  1. 1826-1975 - Oregon, United States Marriages at FindMyPast — index $
  2. Extractions of early marriages are listed on the Western States Marriage Index
  3. Marriage Index 1885-1896 Actually is a book of affiants reporting the marriages. Historical Records Collection

Death RecordsEdit

Societies, Libraries and MuseumsEdit

Gilliam County Historical Museum
History Museum
Condon, OR 97823
Telephone: 541-384-4233

Gilliam County Historical Society
Highway 19 at Burns Park
PO Box 377
Condon, Oregon, 97823
Telephone: 503-384-4233

Columbia Gorge Genealogical Society
c/o The Dalles Public Library
722 Court Street
The Dalles, OR 97058

Family History Centers

Family History Centers provide one-on-one assistance and free access to premium genealogical websites. In addition, many centers have free how-to genealogy classes.


Gilliam County Oregon Genealogy ReferencesEdit

  1. Wikipedia contributors, "Gilliam, Oregon" in,_Oregon accessed 27 Nov 2018
  2. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Gilliam County, Oregon page 572, At various libraries (WorldCat); FHL Book 973 D27e 2002.
  3. Handybook for Genealogists: United States of America, 10th ed. (Draper, Utah: Everton Pub., 2002), Gilliam County, Oregon . Page 572-574 At various libraries (WorldCat); FHL Book 973 D27e 2002; Alice Eichholz, ed. Ancestry’s Red Book: American State, County, and Town Sources, Third ed. (Provo, Utah: Ancestry, 2004), 563-564.
  4. Wikipedia contributors, "GIlliam County, Oregon," in Wikipedia: the Free Encyclopedia,,_Oregon, accessed 10 October 2018.
  5. Jim Tompkins, "The Oregon Trail 1841-1848 Map VI" in Oregon Trail Landmarks at OTMap6.jpg (accessed 18 July 2011).