Allegan County’s Campbell assumes MAC presidency Written by digital@m3group.biz on September 15, 2014. Posted in Events Allegan County Commissioner Jon Campbell was sworn in this afternoon as the Michigan Association of Counties’ newest president. Tags: Allegan County, Jon Campbell, MAC, Michigan digital@m3group.biz This information box about the author only appears if the author has biographical information. Otherwise there is not author box shown. Follow YOOtheme on Twitter or read the blog.