Steam ships at Grain Terminal Number 4, undated. Photo by A. Prentiss.

Aerial view of East Portland, Oregon, east side of the Portland yard to the west, and the Steel Bridge, January 1950, from the Oregon Historical Society Collection.

Portland, Oregon; aerial view, Willamette River and Steel Bridge and Broadway Bridge, undated.

Portland, Oregon; aerial view facing north, of Portland and the Willamette bridges, undated. This is a postcard image.

Willamette River at Portland, Oregon showing steam ships at docks, undated.

Willamette River at Portland, Oregon showing sailing ships, some moored, undated.

Willamette River at Portland, Oregon; 'River Queen', a floating restaurant, undated. This is a postcard image.

Willamette River at Portland, Oregon; sailing ships and tugboats along the lower harbor, undated.

Aerial view, Rivergate industrial park at Portland, Oregon, undated.

Union Pacific McCormick Terminal on Upper Harbor, Portland Oregon; ships in the upper harbor, Willamette River, undated. Photo by A. Prentiss.