MAC was founded in 1972 and held its first fall meeting in the Bismarck Hotel in Chicago, Illinois.
[1] While MAC has over 800 members from various states and countries, the MAC region is composed of Illinois, Indiana, Iowa, Kansas, Kentucky, Michigan, Minnesota, Missouri, Nebraska, North Dakota, South Dakota, Ohio, and Wisconsin.
[2] MAC holds annual conferences with roundtables, panels, and workshops targeted towards archivists, curators, and librarians.
At a second meeting on September 29–30 MAC adopted a constitution, amendments, and elected officers and Council members.
Due to the efforts of Mary Lynn Ritzenthaler and others MAC began publishing its scholarly journal, The Midwestern Archivist (later Archival Issues), in 1976 .