Team Logo. The Madison Muskies were a team in the Midwest League. They were an affiliate of the Oakland Athletics. They moved to Grand Rapids and became the West Michigan Whitecaps. Retrieved from "https://prosportsteams.fandom.com/wiki/Madison_Muskies?oldid=7373" Categories: Former MWL Teams Teams in Wisconsin Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.