The I.W.W.: A Study of American Syndicalism

Appendix IV. Membership Statistics

Table A — Membership Figures — Detroit and Chicago Factions

	Total Membership.						Membership cards issued.	Number of National Industrial Unions.N	Number of Local Unions.O		Number of Charters issued to Local Unions.P		Cumulative number of charters issued.S		Number of locals disbanded.		Cumulative number of locals disbanded.
	Secretary-Treasurer.		Barnett.G		Miscellaneous.H
1	2		3		4		5	6	7		8		9		10		11
1905	14,000		14,300		—-		E	2	E		E		E		E		E
1906	23,219A		10,400		60,000		E	2	394		466Q		466		185T		185
											113		579
									200		281		860
1907	5,931		6,700		28,000		E	E	362		118		928
	Chicago.	Detroit.	C.	D.	C.	D.	C.	C.	C.	D.	C.	D.	C.	D.	C.	D.	C.	D.
1908	5,397	——	13,200		——	——	E	E	322		164		1102		63U		248
1909	3,719	——	10,700	——	——	——	E	E	100	23	90	1	1192	1	33		281	E
1910	4,617	——	9,100	——	9,137I	3,475I	E	1	97	14	160	7	1352	8	54	16	335	16
									98
									115
1911	4,330	10,000	12,800	3,500	——	——	60,000J	E	115	26	150	18	1502	26	69	6	404	22
									105
									107
1912	18,387	20,000	18,300	10,700	——	9,765	9,000K	E	210	34	190	32	1692	58	53	24	457	46
1913	14,851	11,000C	14,300	5,000	23,061	——	E	3	236	58	236	22	1928	80	99	17	556	63
					70,000					39
1914	11,365	——	12,000	2,000	14,310	——	E	3	150	50	78	14	2006	94	125	4	681	67
					23,840				128	49
									222
1915	15,000B	5,000D	——	——	70,000	——	191,293L	E	300	51	E	2	E	96	E	E	E	E
							15,000M		150	25
1916	60,000		E		35,000			4	535		33R		E		E		E
					85,000
							300,000L		350
1917	60,000F		——		200,000		E	6	E		E		E		E		E