The collection is approximately .5 linear feet and consists primarily of documents, correspondence, organization records, photographs and clippings. A significant part of the collection is comprised of photocopies.

Organized into two series, Series I, Jose R. Lopez Papers, and Series II, Mary F. Lopez Papers, the collection includes materials related to Ms. Mary F. Lopez life as a homemaker, wife, activist, and her career.

Documents related to Mr. Jose R. Lopez’s time in WWII are of note, as are photographs of Cesar Chavez in series II. Ms. Lopez met Chavez in the 1960s during one of his visits in support of Mexican-American labor in the region.