I recently purchased a CD containing historical books, on Oregon & the Northwest. While not specifically about Columbia County, they contain good information and have been facinating to read.
Copyright text on the CD:
Copyright (C) 2011-2025
All materials in this collection are contributed by various university libraries, academic institute, government agencies and are copyright-free; however, the whole compilation of the materials is considered to be protected under copyright law, therefore, resale and any commercial uses of either all or a large portion of the compilation comprise the refringement of copyright law and are strictly prohibited. All materials are furnished for informational use only, are subject to change without notice, and should not be construed as a commitment by the Genealogy Bank. The Genealogy Bank assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this compilation.
This complication is licensed for use under the terms of the Creative Commons Attribution Non-Commercial 3.0 License. This License allows users to copy, distribute, and transmit the materials for noncommercial purposes only so long as (1) proper attribution to the Genealogy Bank is given as the distributer of the compilation; and (2) any reuse or distribution of the materials contains a notice that use of the user guide is governed by these terms. The best way to provide notice is to include the following email address firstname.lastname@example.org.
The Genealogy Bank (PD Commons) (www.pdbooks.net)
Book List with link to the PDF
These may take a little to download, but are worth it...
Centennial History of Oregon, 1811-1912 (1912) Volume 1
The Centennial History of Oregon, 1811-1912 (1912) Volume 2
The Centennial History of Oregon, 1811-1912 (1912) Volume 3
The Centennial History of Oregon, 1811-1912 (1912) Volume 4
The Conquerors; Historical sketches of the American Settlement of the Oregon Country, Embracing Facts in the Life and Work
The early Indian Wars of Oregon, compiled from the Oregon archives and other original sources with muster rolls (1894)
The Jesuits in Old Oregon 1840-1940 (1945)
The Mineral Resources and Mineral Industry of Oregon for 1903 (1904)
The Official Records of the Oregon Volunteers in the Spanish War and Phillippine Insurrection (1902
The Oregon Farmer; What he has accomplished in every part of the state (1913)
The Oregon Missions; The story of how the line was run between Canada and the United States (1918)
The Oregon School Laws With Rules And Regulations of the State Board of Education, blank forms, etc (1909)
Wah-kee-nah and her people - the curious customs, traditions, and legends of the North American Indians (1893)
Where Roll the Oregon (1914)
Winning the Oregon Country (1911)
Wyeth's Oregon, or A short history of a long journey (1905)