Later Mallory developed a larger school chorus, the Jubilee Harmonizers, who toured and became nationally famous. They eventually performed at the White House for President Franklin D. and Eleanor Roosevelt. Their touring helped to raise funding for what became known as the Saints Industrial and Literary School. As Mallory became a national leader, she used payments from her own speaking engagements to build the collection of the school's library; it was the only African-American school in the area to have a well-equipped one. It became known both for its "quality education and Christian principles."