Which of the following allowed the Knights of Labor to grow into a large organization? [Select all that apply.] Which of the following allowed the Knights of Labor to grow into a large organization? [Select all that apply.] For some time, the union managed to promote positive change in almost every industry in America. The union successfully lobbied for reforms that guaranteed an eight-hour workday for laborers, which attracted many new members. The leader of the union, Terence Powderly, abolished the KOL's archaic commitment to secrecy in 1882, which allowed more recruitment. The union allowed both skilled and unskilled laborers