What were the 28 submarines made at manitowoc wi?

The 28 boats built at the Manitowoc Shipbuilding Company were of the Gato and Balao classes. The first namesake of my old boat, USS RAY (SSN-653) was one of the Gato-class boats built there (USS RAY (SS-271)).

The link below to the MSC has a list of all submarines built there during WWII.