- Benson raft construction cradle at Wallace Slough Oregon 1911
- I believe this is a picture from Wallace Slough along the Columbia River. The source of the picture is the book Simon Benson, Northwest Lumber King, which is about Simon Benson. Simon Benson established a logging business in Clatskanie, Oregon, which is short distance from Wallace Slough. There is another slough of the same name on the Columbia River, but it is further upstream the Columbia River in Washington [Dave Pinch]
- Simon Benson, Northwest Lumber King, p. 88
