ahhh yes ...
Johnny Got His Gun ... got it. The quadruple amputee swinging from a hook in the military hospital ... very strong statement. I read that book when I was a kid. Never knew it was banned, though I did know Dalton Trumbo was blacklisted in the McCarthy era.
I guess I should cover books that were big in the 60's even if they were written before -- so maybe another example of this would be "Steppenwolf" by Hesse?