How is “die off” used?

In The Grapes of Wrath (1940), one line is: “Old folks died off and little fellas come.”

Which movie is “die off” from?

The clip at the top of this page is from The Grapes of Wrath (1940).

to die one after the other until there are none left

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to die one after the other until there are none left
Old folks died off and little fellas come.

Definiciones del Oxford Advanced Learner's Dictionary, 9.ª edición

Old folks died off and little fellas come.

En 5 películas · n.º 1