Useful Subject Headings
Oral history Use this general subject heading and then limit the results by the country you are seeking.
The Oral History Association offers a wiki listing many collections of oral history.
A few of the available online collections include:
Bracero Oral History Project. The project presents the oral histories and artifacts pertaining to the Bracero program, a U.S. guest worker initiative that spanned the years 1942-1964.
Digitized Immigrant Letters. The site contains letters written in languages other than English exchanged by international migrants and their loved ones in the years between 1850 and 1970 and provides access to and interpretation of the letters for a diverse audience of scholars, teachers and students, and the general public.
In the First Person. This is a free, high quality, professionally published, in-depth index of close to 4,000 collections of personal narratives in English from around the world.
Italian-American Immigrant Oral History Catalog - This is a catalog of interviews collected through a project dealing with Italian immigration into Upper Michigan.
Mexican Migration Project - Oral Histories. The MMP has an online collection of oral histories from thirteen Mexican migrant laborer's who came to the United States, There is also a gallery of paintings about the migrant experience.
North American Immigrant Letters, Diaries and Oral Histories. Includes 2,162 authors and approximately 100,000 pages of information providing a unique and personal view of what it meant to immigrate to America and Canada between 1800 and 1950.