The strike epidemic affected even the girls who worked in the textile factories. The first strike of factory girls on record had occurred in Dover, New Hampshire, in 1828. A factory strike in Paterson, New Jersey, which occurred in the same year, occasioned the first recorded calling out of militia to quell labor disturbances. There the strikers were, however, for the most part men. But the factory strike which attracted the greatest public attention was the Lowell strike in February, 1834, against a 15 percent reduction in wages. The strike was short and unsuccessful, notwithstanding that 800 striking girls at first exhibited a determination to carry their struggle to the end. It appears that public opinion in New England was disagreeably impressed by this early manifestation of feminism. Another notable factory strike was one in Paterson in July 1835. Unlike similar strikes, it had been preceded by an organization. The chief demand was the eleven-hour day. The strike involved twenty mills and 2000 persons. Two weeks later the employers reduced hours from thirteen and a half to twelve hours for five days and to nine hours on Saturday. This broke the strike. The character of the agitation among the factory workers stamps it as ephemeral. Even more ephemeral was the agitation among immigrant laborers, mostly Irish, on canals and roads, which usually took the form of riots. As in the preceding period, the aggressiveness of the trade societies eventually gave rise to combative masters' associations. These, goaded by restrictive union practices, notably the closed shop, appealed to the courts for relief. By 1836 employers' associations appeared in nearly every trade in which labor was aggressive; in New York there were at least eight and in Philadelphia seven. In Philadelphia, at the initiative of the master carpenters and cordwainers, there came to exist an informal federation of the masters' associations in the several trades. From 1829 to 1842 there were eight recorded prosecutions of labor organizations for conspiracy. The workingmen were convicted in two cases; in two other cases the courts sustained demurrers to the indictments; in three cases the defendants were acquitted after jury trials; and the outcome of one case is unknown. Finally, in 1842, long after the offending societies had gone out of existence under the stress of unemployment and depressions, the Supreme Judicial Court of Massachusetts handed down a decision, which for forty years laid to rest the doctrine of conspiracy as applied to labor unions.[7]