Kohler: A Political Biography of Walter J. Kohler, Jr - Gregory A. Fossedal - Google Books

https://books.google.de/books?id=IX2jr7xnjJ4C&pg=PA16&dq=John+M.+Kohler#v=onepage

"Speaking as a member of the opposing party, I always respected Walter Kohler as a capable adversary, and one of Wisconsin's great governors. He was a man of strong ideas, but not an ideologue--a true gentleman.... If you were looking for a model…