Expand your research by checking out the Washington Online Historical Newspapers here.
Unsure of which county your city, town or village is a part? Check out RootsWeb's Town/County Locator here.
Pacific Coast Business Directory, Langley, 1867 - Free (Internet Archive)
Pacific Coast Business Directory, Langley, 1867 - Free (Vancouver [British Columbia] Public Library)
- Part I, Part II, Part III
Seattle City and King County Pioneer Directory and Washington Territory Business Directory, Choir, 1878 - Free (University of Washington)