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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