Collection
- Joyce Lindeman papers, 1950-1997 (majority within 1955-1986)1
- Laurie Palazzolo Horn Man research materials collection, 1913-2004 (majority within 1940s-1980s)1
- Leroy and Lael Cappaert papers, 1947-20021
- Martha Cook Building (University of Michigan) records, circa 1913-20161
- Mary S. Coleman Papers, 1938-1984 (majority within 1972-1982)1
- Media Resources Center (University of Michigan) films and videotapes, 1930s, 1948-19861
- Media Resources Center (University of Michigan) records, 1948-1987, 1948-19871
- Medical School (University of Michigan) records, 1850-20141
- Mental Health Association in Michigan records, 1937-2004 (majority within 1970-1990)1
- Metropolitan Christian Council (Detroit-Windsor) Records, 1920-20061
- Michigan Citizen Records, 1933-2015 (majority within 1990-2010)1
- Michigan Environmental Council records, 1925-2012 (majority within 1980-2005)1
- Michigan Interscholastic Forensic Association records, 1897-2006 (majority within 1974-2002)1
- Michigan Library Association records, 1891-19911
- Michigan Medicine Office of Development (University of Michigan) records, 1875-2001 (majority within 1960-2001)1
- Michigan Medicine Volunteer Services (University of Michigan) records, 1937-2007 (majority within 1981-1995)1
- Michigan Nature Association records, 1945-2017 (majority within 1961-1999)1
- Mike Wallace CBS 60 Minutes papers, 1922-2007 (majority within 1968-2007)1
- Milo Radulovich papers, 1945-20081
- Naomi Long Madgett and the Lotus Press Papers, 1937-2004 (majority within 1970-2003)1