Although Tumut is both the place of origin and place of rest for the Cup, Cootamundra was the heart of Maher Cup football. As you can see below Cootamundra was clearly the dominant side. It was also the geographical and administrative centre of Maher Cup and Group 9 Football.
There were in my calculation 729 challenges between 1920 and 1971 for the Maher Cup. The sources include the list by John Madigan in his book The Maher Cup and Tumut, as well as that by Paul McCarthy in The Maher Cup: the Harden-Murrumburrah story, as well as a search on Trove of digitised newspaper articles. This list and the results includes a match abandoned by the referee because of widespread player mayhem and quite a few matches where the result was later overturned or nullified as a result of protests.