Under the leadership of Cardinal Albert Meyer, in 1961 the seminary opened a second campus in Niles, Illinois. The Niles campus became the site for the two-year liberal arts program. The Mundelein campus included the upper class college studies in philosophy followed by a four-year theology curriculum. Under Cardinal Meyer’s successor, Cardinal John Cody, the undergraduate program was affiliated with Loyola University of Chicago and became Niles College of Loyola University. Saint Mary of the Lake Seminary was now strictly a graduate school of theology. The program which resulted from that revision continued to be implemented for more than a decade, its academic, formation/spiritual and pastoral aspects guided by the Program of Priestly Formation of the National Conference of Catholic Bishops and the directives of the Sacred Congregation for Catholic Institutions.