Labor Unions are organized to help labor. There are two types of labor unions, Craft Unions for workers in a certain skill or trade, like masons or carpenters; and Industrial Unions that are made up of all the workers in a particular industry. The Auto Workers Union is an example of an Industrial Union and the AMA is an example of a Craft Union.
The Clayton Antitrust Act
labor unions, churches, universities, and hospitals
The American Federation of Labor (afl) was organized as an association of trade unions in 1886.
Joyce Maupin has written: 'Working women and their organizations' -- subject(s): History, Employment, Women in labor unions, Labor unions, Women
Knights of Labor~apex
Unions
labor unions and farm organizations.
Skilled labor organizations, like those for carpenters and printers, were known as unions. They were successful at conducting strikes and raising wages for workers.
Macroeconomics
The American Federation of Labor (AFL) & Congress of Industrial Organizations (CIO)
American Federation of Labor - Congress of Industrial Organizations
The Congress of Industrial Organizations (CIO) and the American Federation of Labor (AFL)