Resources: Statewide
- US Biographies Project
- WA GenWeb Project
- "Classics in Washington History" - the Washington State Library and Washington Secretary of State's Office have collaborated to make several histories available online, including the "History of Old Walla Walla County", the "History of Clarke County, Washington Territory" and others.
- "Governors of Washington, Territorial and State" - Written by Edmund S. Meany in 1915. Scanned and contributed to the USGenWeb project by Darilee Bednar.
- HistoryLink.org
- "History of the Pacific Northwest: Oregon and Washington" - Published by North Pacific History Company, Portland, OR, 1889. Transcribed by Janine M. Bork.
- Library of Western Fur Trade Historical Source Documents - "Diaries, Narratives and Letters of the Mountain Men" - of particular interest are the diaries of Nathaniel Wyeth, whose accounts enticed many settlers to Washington and Oregon Territories.
- Register of the Washington State Society: Sons of the American Revolution June 17, 1895 - April 19, 1916 - a listing of chapters, officers and members of the Washington State Society of SAR. Includes brief sketches of members. The book was scanned and posted online by Darilee Bednar (note: the index on the main page does not include all names listed in the book).
Resources: County-specific
- Columbia County, WA Bios - part of the US GenWeb project
- Cowlitz County, WA Bios - part of the US GenWeb project
- Lewis County, WA Bios - part of the US GenWeb project
- Ezra Meeker (founder of Puyallup, Pierce Co., WA)
- Murray's People - collection of essays by Murray Morgan, digitized by the Tacoma Public Library. Focus is on Pierce County, WA, but other includes profiles of residents of other counties, as well.
- Skagit County, WA Bios - part of the US GenWeb project
- Skagit Pioneer Family Biographies
- Skagit River Journal - extensive collection of information on pioneers of northwest Washington, focusing on Skagit, Whatcom, Snohomish, Island and San Juan counties. The Journal was founded and nurtured by the late Noel V. Bourasaw, and is now maintained by the Skagit County Historical Society.
- "Everett Herald Newspaper Coverage of Hometown Warriors" - collection of newspaper clippings and other information about World War II soldiers from Snohomish Co.