Who was Ernesto Galarza? What was his purpose for giving this talk?

Ernesto Galazara was a Mexican-American labor activist.

Explanation:

He was also a professor and writer and has produced over hundreds of works. He was also a social activities and an active figure in organizing farm workers and their movements in California. The purpose of giving this talks was to make the farm workers aware of their rights.

He also wanted the farm workers to be trained for working in industries and wanted to provide them industrial training through his talks. His aim was to make sure that the farm workers were not denied of their rights.