[1] For a short period in the early 1960s, both Quigley campuses held joint events, including graduations, in order to instill among the students the spirit of sharing one school.

The new policy also indicated that Quigley North and South should "emphasize the fact that they are contemporary seminaries primarily concerned with the development and encouragement of vocations to the priesthood," and that "a vigorous campaign should be begun, especially on the part of priests, to enroll qualified students.

Reflective of the ethnic and racial diversity of Chicago, increasing numbers of Poles, African-Americans, Lithuanians, Hispanics and Irish students matriculated at Quigley South each fall.

Prayer and a rigorous curriculum remained a mainstay of Quigley, however the school would eventually offer an innovative approach to attracting and retaining its culturally diverse community.

The reemergence of the seminary as a place for young men to explore their interest in priesthood was acknowledged when Pope John Paul II visited Quigley South on October 5, 1979.

A decision to integrate new technologies with the traditional academic rigors of Quigley led to the establishment of a computer lab in 1983, one of the first Chicago-area high schools to do so, complete with Apple IIe's.

For several weeks in early 1990, Quigley students[6] and alumni from both institutions picketed the mansion[7] of Cardinal Joseph Bernardin and published a full-page ad in the Chicago Sun-Times.

The Quigley South Spartans wore blue-and-gold colors, and competed in baseball, basketball, soccer, cross-country, wrestling, track, swimming, tennis, and golf.