When I was growing up and going to college in Western and Central Pennsylvania, it was not uncommon to see railroad boxcars occasionally dotting the landscape. I'm not talking about the little red caboose that might sit at an old, defunct railroad terminal in some small town. I'm talking about the big rectangular box cars, usually wooden, with the big sliding doors, sitting on the old rusted frame with metal wheels. And they weren't sitting on some abandoned rail line. Most of the time they were in a field, or a gully along a stream bed, or simply in the yard of some farmhouse. I always thought about "The Boxcar Children" series of books that I read as a child from my elementary school library whenever I would pass one. Another thing that was talked about quite a bit in movies and in the classroom when I was young was the hobo movement. Another societal group living, even temporarily, in boxcars. I used to fantasize about running away and traveling the country as ...