[quote=@Fading Memory]
The Pinkertons are a curious stain of US history that has greatly benefited from a lack of publicity. Detectives, gunslingers, union busters, and now functionally a mercenary company.
[/quote]

I honestly thought they weren't around any more, considering that the only other time I heard about them was from History Books in U.S. History. I was wrong...^^"

[quote=@rush99999]
<Snipped quote by Guardian Angel Haruki>

What did the other characters represent?
[/quote]

From what I remember...

Dorothy/Scarecrow: Farmers
Tin Man: Factory Workers
Cowardly Lion: President of the United States 
Wicked Witch of the West: Railroad Companies
Water: The Farmers' Power
Silver Slippers and the Yellow Brick Road: The Silver and Gold Economic Standard.

That's all I remember unfortunately. This was from High School.