The Muscatine Migrant Committee (MMC)records date from 1962 to 2005 and are organized in the following series: Administration, Juan Cadena, Marta Cadena, Education, Health, Organizations: Iowa, Organizations: other states, Newsletters, Reports and writings, Slides, and Artifacts.

The Administration series includes a 1962 report detailing the origins of the Muscatine Migrant Agency in the 1950s. Board of director minutes and correspondence after 1970 reflect new directions of the Muscatine Migrant Committee under the leadership of Chicano activist Juan Cadena, the first Latino to hold the position of director.

The Juan Cadena series provides insight into Cadena's background and activism in Saginaw, Michigan, in the 1960s, including his involvement in the international grape boycott campaign led by Cesar Chavez and Dolores Huerta, the Poverty People's Alliance and La Raza Unida.

The Marta Cadena series includes her employment with the Farmers Home Administration in the 1980s.