great depression and dust bowl By shelbybishop 1931 severe drought hits the midwest and south plains 1932 dust storms increasing 1933 4 day bank holiday declared 1933 161 soil erosion camps Oct 4, 1933 workers strike for 24 days 1934 dust storms spread further 1935 emergency relief appropriation act 1935 "black blizzard" 1939 rain comes, bringing an end to the drought