Archaeology of Juvenile Justice in the US

Here's my attempt to describe a couple of the layers of history of juvenile justice in the US. Unlike archaeology, its not always clear where one era ends and another begins. Lots of layers though. I'd also submit that it's not clear what chapter we are in right now.

https://www.dropbox.com/s/fmp63gz9ul6yyot/archaeology%20of%20jj%20in%20the%20US.docx?dl=0

stratigraphy layers