Question

new deal
reconstruction finance corporation (rfc)
black blizzard
breadline
dust bowl
great flood of 1936
okies
soup kitchen
the grapes of wrath

Explanation:

These terms are related to the history of the United States, particularly the Great Depression era. Topics like the New Deal, Dust Bowl, Okies, and events like the Great Flood of 1936, along with cultural references like "The Grapes of Wrath" and relief efforts like the Reconstruction Finance Corporation and soup kitchens, fall under the subfield of History within Social Science.

Answer:

Social Science - History