http://www.loc.gov/pictures/item/owi2001045480/PP/resource/   http://www.loc.gov/pictures/item/fsa1992001024/PP/ http://www.loc.gov/pictures/item/fsa1992001028/PP/ http://www.loc.gov/pictures/item/owi2001045487/PP/resource/ http://www.loc.gov/pictures/item/owi2001045474/PP/resource/ http://www.loc.gov/pictures/item/owi2001046046/PP/resource/ Having explored inside the railway works, Jack Delano continued his documentation of the Chicago and North Western outside in the switching (shunting) yards. One tends to forget the enormous size of American steam locos until you see them with people next to them, and those depicted in these…