jonny, 
Doing some research for a zine. Here's on detective agencies, spies, and sabotage in unions from "Boycotts and the labor struggle" (1914).
https://archive.org/details/boycottslaborstr00laidrich/page/n1/mode/2up
ccording to Miss Gertrude Barnum, one of the leaders of the strike, Morris Lubin, a young man supposedly a garment worker of Cleve- land, was hired by the cloak manufacturers of that city, through the William J. Burns agency, soon after the breaking out of the strike, at a salary of $10 a day, and was required to make daily reports to the manu- facturers* association. He was a clever talker, was elected into the union, volunteered as a leader on the picket line, and, by means of his energy, versatility and daring, soon became the idol of some of the younger element. His position in the union secure, he began to urge the strikers to less peaceful action on the picket line, arguing that the strike was the beginning of the industrial revolution and that mild actions were totally ineffective. His leadership resulted in many deeds of violence which greatly discredited the union. Some of his activities are thus described by Miss Barnum:
"Lubin led secret raids upon the homes of the strike breakers. He plotted unsuccessfully to blow up the hotel occupied by the 'scabs.' . . . He looted and wrecked other places. He was lavish in distributing lead pipe, blackjack and even revolvers to the hot heads of the union who were committing the outrages unbe- known to the officers. As a grand climax of his pro- gram of violence and bloodshed, Lubin planned an attack on a train bringing strike breakers into town. . . . Revolvers were furnished from his home. . . . They (Lubin and his followers) opened fire with their guns, shooting into the air, but didn't do any damage."
Finally a strike-breaker was slugged by Lubin and three strikers. The man afterward died. The vio- lence reported in connection with the strike aroused public opinion against the strikers, who finally lost. Miss Barnum believes, as a result of these deeds. At one time, In fact, the strikers were about to settle with a manufacturer when Lubin, Miss Barnum alleged, broke up the conference by throwing an ink bottle at the employer. On the trial for assaulting the strike- breaker, the "spy" broke down, confessed all, and was sentenced to six months' Imprisonment.
