Bob Chaparro:

I came across an image of finished lumber being loaded into
boxcars. The image can be seen at:

http://ulibimage.ucdavis.edu/speccoll/east01/full/P-1939.jpg

Also interesting is that there's a stack of lumber in the left foreground which is wrapped in
canvas. I'm wondering if this was specially milled lumber or if it was special specie.

SGL