Notes to Table A.
Here are assembled most of the available figures relating to I. W. W. membership and fluctuations in membership during the period 1905-1917. The figures are fragmentary and, for the most part, approximations; those in columns 1, 6, 7 and 11 being especially rough and fragmentary. For example, it will be observed, in comparing columns 7 and 9 with column 11 for the year 1914, that there must have been at least 1784 defunct locals at that time instead of 681 as the record shows.
The figures in italics were furnished by the secretary-treasurers, Vincent St. John for the Chicago I. W. W., and Hermann Richter for the Detroit I. W. W.
| Chicago I. W. W.: | males | 7137, | females | 2000. |
| Detroit I. W. W.: | males | 3130, | females | 345. |
Notes
A Average membership 1905-1906. Computed from record of receipts for the General Defense Fund (Proceedings Second Convention, p. 586.)
B Approximate. W. D. Haywood before U. S. Commission on Industrial Relations, Washington, D. C., May 12, 1915. (Final Report and Testimony, vol. xi, p. 10581.)
C Weekly People, Sept. 27, 1913; also testimony of Rudolph Katz before U. S. Commission on Industrial Relations (Final Report and Testimony, vol. iii, 2485).
D Only 2000 were “in good standing.”
E No data available.
F St. John, The I. W. W.—Its History, Structure and Methods (1917 ed.), p. 23.
G The figures in column 3 are from Professor Geo. E. Barnett, “Membership of American Trade Unions,” Quarterly Journal of Economics, vol. xxx, p. 846 (August, 1916). His figures come, apparently, from I. W. W. headquarters in Chicago, but they do not agree entirely with those furnished the author by Secretary St. John.
H In this and some of the following columns more than one figure has been included in years for which varying estimates were found. The sources for column 4 are as follows: Proceedings 2nd I. W. W. Convention, p. 60; Report of the I. W. W. to the Stuttgart International Socialist Congress, Industrial Union Bulletin, Aug. 10, 1907, p. 4; Bulletin New York State Department of Labor, no. 67 (“International trade union statistics”), p. 3; Louis Levine, “The development of syndicalism in America,” Political Science Quarterly, vol. xxviii, p. 478 (Sept., 1913); Vincent St. John’s testimony before U. S. Commission on Industrial Relations (Final Report and Testimony, vol. ii, p. 1456; Weekly People, Dec. 9. 1916, p. 1, col. 3).
I Leo Wolman, “Extent of labor organization,” Quarterly Journal of Economics, vol. xxx, p. 603 (May, 1916). Wolman shows sex distribution as follows:
J Number issued between February 1910, and October, 1911.
K For the Detroit I. W. W. Approximate number issued during the textile workers strikes.
L Accumulated number from 1905.
M For the Detroit I. W. W. Approximate. October 1, 1908, to February 1, 1915.
N Sources: Industrial Worker (I), August, 1906; Miners Magazine, Sept. 7, 1905, p. 15; Marot, American Labor Unions, p. 59; St. John, op. cit., p. 23.
O Sources: Proceedings 2nd I. W. W. Convention, p. 43; Third I. W. W. Convention, Official Report No. 1, p. 2; Report of the I. W. W. to the Stuttgart International Socialist Congress, Industrial Union Bulletin, August 10, 1907, p. 3, col. 3; Massachusetts Bureau of Labor and Industry, Annual Report on Labor Organizations, 2nd to 7th, inclusive (1909-1914); The Industrial Worker, May 14, 1910, p. 2, and Jan. 5, 1911, p. 2; Marot, op. cit., Appendix.
P Sources: Miners Magazine, issues from Oct. 1, 1906, to Feb. 1, 1907; Report of the secretary-treasurer to 3rd I. W. W. Convention, Industrial Union Bulletin, Sept. 14, 1907, p. 7, col. 1.
Q Number issued up to Feb. 1, 1906, including 185 charters issued to the Mining Department (W. F. of M.) (Miners Magazine, Feb. 22, 1906, p. 14).
R Solidarity, May 27, 1916, p. 3, col. 1. This figure is for the first five months of 1916.
S Figures in the Detroit column are from Oct. 1, 1908.
T W. F. M. (Mining Department) locals. Miners Magazine, Sept. 7, 1905, p. 15.
U Oct. 1, 1907, to Oct. 1, 1908 (Industrial Union Bulletin, Oct. 10, 1908, p. 2, col. 3).