NLRB Stats Archive › Annual Reports › FY1940 › Cases brought before NLRB and number of strikes

Cases brought before NLRB and number of strikes

source page 166 · nlrb1940_p0166_t0

Year and month	Number of cases brought before Board	Number of strikes — Total	Number of strikes — Involving recognition and discrimination	Ratio of cases to strikes — All strikes	Ratio of cases to strikes — Strikes involving recognition and discrimination
	(1)	(2)	(3)	(1/2)	(1/3)
1938 Total	7,990	2,180	958	3.67	8.34
1938 January	674	148	59	4.55	11.42
1938 February	629	156	75	4.03	8.39
1938 March	896	216	103	4.15	8.7
1938 April	823	207	94	3.98	8.76
1938 May	624	233	98	2.68	6.37
1938 June	727	178	58	4.08	12.53
1938 July	605	164	47	3.69	12.87
1938 August	606	203	79	2.99	7.67
1938 September	594	176	75	3.38	7.92
1938 October	706	196	108	3.6	6.54
1938 November	518	167	105	3.1	4.93
1938 December	588	136	57	4.32	10.32
1939 Total	6,348	2,098	793	3.02	8
1939 January	480	163	81	2.94	5.93
1939 February	533	173	64	3.08	8.33
1939 March	552	179	85	3.08	6.49
1939 April	601	203	70	2.96	7.54
1939 May	588	206	78	2.85	10.25
1939 June	533	194	52	2.75	10.25
1939 July	522	188	58	2.77	8.98
1939 August	522	221	90	2.36	5.79
1939 September	412	158	55	2.6	7.47
1939 October	511	170	63	3	8.1
1939 November	576	155	58	3.71	9.91
1939 December	518	88	39	5.88	13.26
1940 January	417	101	34	4.12	12.24
1940 February	448	132	47	3.39	9.51
1940 March	527	131	53	4.02	9.92
1940 April	616	188	70	3.27	8.77
1940 May	579	197	60	2.93	9.62
1940 June	530	168	51	3.15	10.37

Source image

Source data: U.S. NLRB Annual Reports (public domain). Reconstruction by NLRB Stats Archive. Updated June 2026.