This collection includes newspaper clippings, photographs, correspondence, personal papers documenting Morales's family history, manuscripts, and organizational papers reflecting his work with the Mexican American Opportunity Foundation (MAOF) and other public entities. The collection is heavily weighted toward photographic documentation, providing a unique visual record of Mexican American family, culture, and social organizing throughout the twentieth century. The collection is also notable in that it contains typed, hand-notated drafts of many of Morales's speeches and lectures on a variety of subjects.

The collection is organized into the following series: