USA (1,403,636) > Oregon (12,260) > Malheur County (200) > Ontario (45)
NOTE: Additional records that apply to Ontario are also found through the Malheur County and Oregon pages.
1842-1917 Oregon State Births (selections) Ancestry 
Oregon, Birth Records, 1903-present Oregon Health Authority
Brogan Cemetery Find a Grave 
Evergreen Cemetery Billion Graves 
Evergreen Cemetery Find a Grave 
Fairview Cemetery US Gen Web Archives 
Fairview Cemetery Interment 
Fairview Cemetery Billion Graves 
Fairview Cemetery Find a Grave 
Saint John Cemetery Billion Graves 
Sunset Cemetery Find a Grave 
Federal Census of 1940, Ontario, Oregon LDS Genealogy 
U.S. Federal Census 1790-1950 Ancestry 
U.S. Federal Census 1790-1950 MyHeritage 
United States Federal Census, 1790-1950 Family Search 
Ontario Friends Church records, 1937-1980 FamilySearch Library
Record of members, 1926-1940; annual genealogical report, Form E, 1926-1948 (Church of Jesus Christ of Latter-day Saints. Ontario Ward (Oregon)) FamilySearch Library
Polk's Payette, Idaho, Ontario, Oregon and Weiser, Idaho city directory FamilySearch Library
1864-1971 Oregon State Deaths Ancestry 
Oregon Deaths, 1903-1930 MyHeritage 
Oregon, Death Records, 1903-present Oregon Health Authority
United States Obituary Index from Online Sources MyHeritage 
FamilySearch Family Tree MyHeritage 
History of Rotary District 542 FamilySearch Library
MyHeritage Family Trees MyHeritage 
Sanborn Fire Insurance Map from Ontario, Malheur County, Oregon, 1900 Library of Congress 
Sanborn Fire Insurance Map from Ontario, Malheur County, Oregon, 1911 Library of Congress 
Sanborn Fire Insurance Map from Ontario, Malheur County, Oregon, 1949 Library of Congress 
1906-1968 Oregon State Marriages (selections) Ancestry 
1906-2009 Oregon Marriage Indexes Ancestry 
Oregon, Marriage Records, 1911-present Oregon Health Authority
Argus Observer 01/07/1999 to Current Genealogy Bank 
Ontario Argus (Ontario, Or.) (from June 11, 1909 to Dec. 28, 1922) MyHeritage 
Ontario Argus 06/11/1909 to 12/28/1922 Genealogy Bank 
Ontario Argus 1909-1922 Newspapers.com 
The Ontario Argus 1909-06-11 to 1922-12-28 Historic Oregon Newspapers 
The Ontario Argus. (Ontario, Or.) (from June 11, 1909 to Dec. 28, 1922) Chronicling America 
United States Obituary Index from Online Sources MyHeritage 
 Offline Newspapers for OntarioAccording to the US Newspaper Directory, the following newspapers were printed, so there may be paper or microfilm copies available. For more information on how to locate offline newspapers, see our article on Locating Offline Newspapers. Argus Observer. (Ontario, Or.) 1986-Current Daily Argus Observer. (Ontario, Or.) 1970-1986 Eastern Oregon Observer. (Ontario, Malheur County, Or.) 1936-1947 Ontario Argus-Observer. (Ontario, Or.) 1947-1970 Ontario Democrat. (Ontario, Malheur Co., Or.) 1902-1918  | 
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