Oregon Historical Society Library, the University of Oregon Library, and the Oregon State Library have some Oregon newspaper files. The Oregon Historical Society Library has an alphabetical card file with abstracts of birth, marriage, and death information from early Oregon newspapers. Some pre-1880 Oregon newspapers are available at the Bancroft Library at the University of California at Berkeley.
The Family History Library does not have copies of Oregon newspapers. The library has copies of published obituaries, such as those from the Pacific Christian Advocate (1864-80 on Family History Library films 369746-47; 1880-1890 on film 365234).
A guide to Oregon newspapers is Rory Funke, Oregon Newspapers on Microfilms (Eugene, Oregon: University of Oregon Library, 1980; Family History Library book 979.5 B3o).
There is an increasing amount of older newspaper information online. To find more about Oregon Newspapers use a search engine and key words such as "Oregon Historic Newpaper".