made their living as domestic servants, housekeepers, running restaurants, laundries (leading to the 1886 Supreme Court decision Yick Wo v. Hopkins and then to the 1933 creation of the Chinese Hand Laundry Alliance) and a wide spectrum of shops, such as food stores, antique shops, jewelers, and imported goods stores. In addition, the Chinese often worked in borax and mercury mines, as seamen on board the ships of American shipping companies or in the consumer goods industry, especially in the cigar, boots, footwear and textile manufacturing. During the economic crises of the 1870s, factory owners were often glad that the immigrants were content with the low wages given. The Chinese took the bad wages, because their wives and children lived in China where the cost of living was low. As they were classified as foreigners they were excluded from joining American trade unions, and so they formed their own Chinese organizations (called "guilds") that represented their interests with the employers. The American trade unionists were nevertheless still wary as the Chinese workers were willing to work for their employers for relatively low wages and incidentally acted as strikebreakers thereby running counter to the interests of the trade unions. In fact, many employers used the threat of importing Chinese strikebreakers as a means to prevent or break up strikes, which caused further resentment against the Chinese. A notable incident occurred in 1870, when 75 young men from China were hired to replace striking shoe workers in North Adams, Massachusetts. Nevertheless, these young men had no idea that they had been brought from San Francisco by the superintendent of the shoe factory to act as strikebreakers at their destination. This incident provided the trade unions with propaganda, later repeatedly cited, calling for the immediate and total exclusion of the Chinese. This particular controversy slackened somewhat as attention focused on the economic crises in 1875 when the majority of cigar and boots manufacturing companies went under. Mainly, just the textile industry still employed Chinese workers in large numbers. In 1876, in response to the rising anti-Chinese hysteria, both major political parties included Chinese exclusion in their campaign platforms as a way to win votes by taking advantage of the nation's industrial crisis. Rather than directly confronting the divisive problems such as class conflict, economic depression, and rising unemployment, this helped put the question of Chinese immigration and contracted Chinese workers on the national