There has been long-standing doubt that Ross re-did Minneapolis Golf Club, because his office did not include it on the list of Ross courses. I go into some lengthy detail about this in my book on Minnesota courses, but the gist of the evidence says this:
When MGC moved from its original site in Golden Valley, Willie Park, Jr. came to Minneapolis and designed a course for the new club in the fall of 1916. Park did not return to Minneapolis. Over the winter MGC hired Bill Clark as their head pro and turned the project over to him, with the understanding that he would finish what Park started. Within two years the club decided they needed to move its clubhouse from the south end of the property to the north, necessitating a re-design, which would include some new holes. They first contacted Herbert Strong, but in April 1920 the club members balked at the expense of a new clubhouse and Strong's preliminary plans were shelved. Then in June of 1920 club president J.A. Hunter announced that Donald Ross was going to be brought in that September to propose a re-design of the course.
The club has no documents pertaining to the hiring of Ross -- maybe they were lost during the transition to the new clubhouse in the early '20s, or during a major clubhouse fire in the late '50s -- but former club member John Crowley, who found Willie Park's original blueprints for MGC at an engineer's office, also located a drawing of the new layout in the Donald Ross archives at Pinehurst, mis-labled as "Minneapolis Country Club." The Ross drawing is identical to the current layout.
Why Ross didn't list MGC as one of his projects remains a mystery, but the evidence is pretty convincing that he did the re-design.