They were mostly in the Milwaukee area. Okay, so why were these schools doing summer baseball? What was even the original motivation for summer baseball? Because right now it seems everyone is dominating the conversation about things really irrelevent to summer baseball. If it was to avoid weather northern teams would figure out how to do it. If these teams are around Milwaukee I am sure travel teams are not helping matters. I've wondered that too. I didn't even know summer baseball existed in Wisconsin until I played in college and a bunch of guys on the team complained about having the play in spring because they'd never done it before. I'm not sure who the last hangers on were but summer baseball was basically Milwaukee area, north of Milwauke (Sheboygan, Kohler, etc.), and western Wisconsin (Grantsburg, Ladysmith area). Maybe some Milwaukee schools played summer because there weren't enough fields for everyone to play at the same time. But that's just me guessing.