<P> The Knights ' primary demand was for an eight - hour day ; they also called for legislation to end child and convict labor , as well as a graduated income tax . They were eager supporters of cooperatives . The only woman to hold office in the Knights of Labor , Leonora Barry worked as an investigator and described the horrific conditions in factories , conditions tantamount to the abuse of women and children . These reports made Barry the first person to collect national statistics on the American working woman . </P>
<P> The Knights ' primary demand was for an eight - hour day ; they also called for legislation to end child and convict labor , as well as a graduated income tax . They were eager supporters of cooperatives . The only woman to hold office in the Knights of Labor , Leonora Barry worked as an investigator and described the horrific conditions in factories , conditions tantamount to the abuse of women and children . These reports made Barry the first person to collect national statistics on the American working woman . </P>
according to the preamble what was the main concern of the knights of labor
according to the preamble what was the main concern of the knights of labor
eight - hour day
eight - hour day