The fonds reflects Betty Mardiros political and social activities and includes clippings, reports, minutes, publications newsletters, articles, correspondence, reports related to the following committees and organizations the CCF, NDP, VOW, EVA, ENUF, WISF, STOP, the Canadian-Cuban Friendship Association, and the Canadian-Chilean Committee for Solidarity dating from 1949 to 1993.

The fonds consists primarily of records collected by Memoria Viva and maintained as a community archives.

The textual records consist of publications, bulletins, newspapers, and newsletters published by Chilean progressive organizations both in Chile and Canada. These publications were produced by organizations such as Tupac Amaru, Izquierda Cristiana de Chile (ICC), Sociedad Cultural Chileno Canadiense, Popular Unitary Action Movement (MAPU), Socialist Party of Chile, and Amigas. Publications include Canada-Chile Bulletin, Entrelineas, Bulletin Comunidad Chilena, Chileno de Corazón, Resistencia, Aqui, Venceremos, and several others.

There are also posters and programs from events held by Memoria Viva and its predecessor organizations, files created by Monica Chavez for her 1990s community radio program Chile al Dia, Tupac Amaru administrative records, ICC administrative records, academic research papers on the Chilean community in Edmonton, and a small collection of books on Chilean politics and history.

The photographs consist of images from Escuela Salvador Allende classes and events, sporting and cultural events (including portraits of community soccer teams), and other public events such as Heritage Days.

The videocassettes mostly consist of master tapes of episodes of Nosotros, a community television program broadcast on Shaw Television. Founded in 1982 by Lito Azócar, the program focuses on the events, viewpoints, and history of the Latin American community in Edmonton. Many of these episodes, from 1982 to 2010, have been digitized by the University of Alberta and are hosted on its website.

The arpilleras (Spanish for “burlap”) are a unique form of Chilean folk art consisting of fabric, embroidery, or other found materials adhered to burlap to create a picture. The construction of arpilleras was popularized during the Pinochet regime and were made mostly by collectives of women called arpilleristas. These collectives worked in Chile and abroad to create artwork that celebrated Chilean culture and to draw attention to the crimes of the Pinochet regime while also creating income for impoverished communities.