which labor union admitted skilled and unskilled workers, women, african american, farmers and factory workers?

To the best of my knowledge the answer is: an union founded in 1869, The Knights of Labor, is considered to be the first industrial union which admitted skilled and unskilled workers, women, and African-Americans. This inclusive policy contributed to its growth, and the union boasted more than 700,000 members by the mid-1880s. The program of the Knights of Labor was involved both reform ideas and specific worker demands. It was led by Terence V. Powderly, and they welcomed unskilled, semi-skilled, and skilled workers into their ranks as well as immigrants, African Americans and women.