Team Logo. The Wausau Timbers were a team in the Midwest League. They were the Low-A affiliate of the Seattle Mariners. In 1991 they moved to Illinois and became the Kane County Cougars. Retrieved from "https://prosportsteams.fandom.com/wiki/Wausau_Timbers?oldid=10089" Categories: Former MWL Teams Teams in Wisconsin Community content is available under CC-BY-SA unless otherwise noted.