Community Service Organization
| Abbreviation | CSO |
|---|---|
| Founded | 1947 |
| Founder | Fred Ross Sr.; Edward Roybal; Antonio Ríos |
| Type | Grassroots civil rights organization |
| Headquarters | Boyle Heights, Los Angeles, California, U.S. |
Region served | Mexican American communities in California (later expanded) |
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purpose. It should be removed.The Community Service Organization (founded 1947) is a California Latino civil rights organization, most famous for training Cesar Chavez and Dolores Huerta.