English: This chart illustrates the number of sit-down labor strikes, and the quantity of workers involved from January 1936 to March 1939, the major and largest waves of such strikes. The blue line traces the number of striker per month and should be read against the left axis and runs to 210. The tan bars indicate the number of workers affected by these strikes, measured against the scale on the right, which runs up to 175,000.
A graph with a single peak in March 1937 labeled: "Mar 1937 170 strikes affect 187,210 workers in peak month for sit-down strikes in the United States." The number of involved workers rose rapidly from December 1936, and declined rapidly as well, with a small local maximum in November 1936. The number of strikes remained elevated January to June 1936 then declined to low numbers.
Other labels read: Dec 1936-Feb 1937 GM Strike" and "Feb 1939 Supreme Court upholds firing sit-down strikers."
Sources are listed as followed: US Department of Labor, Division of Industrial Relations. “Analysis of Strikes in 1938.” Monthly Labor Review, May 1939.
https://www.bls.gov/wsp/publications/annual-summaries/pdf/analysis-of-strikes-in-1938.pdf, Table 16;“Strikes in 1939.” Monthly Labor Review, May 1940.
https://www.bls.gov/wsp/publications/annual-summaries/pdf/strikes-in-1939.pdf, p. 26–27.