This should be US CA1, not Northampton.
http://en.wikipedia.org/wiki/Pensacola-class_cruiser
Northampton should be slightly buffed and make it lvl 43 CA2, with Portland as its lvl 45 remodel.
This ship
http://en.wikipedia.org/wiki/USS_Wichita_(CA-45)
should be added in parallel to CL.Cleveland, before Baltimore, in brooklyn line.