History lesson:
There used to be 2 Catholic Conferences.
The Chicago Catholic League.
The Suburban Catholic Conference
From the ESCC website:
The conference can trace its roots back to the founding of the
Suburban Catholic Conference in 1960. Among the six founding members, only Joliet Catholic, Notre Dame, and Benet Academy (then known as
St. Procopius) are currently ESCC members. Carmel joined in 1966.
In 1970, Joliet Catholic temporarily left, with four new schools joining: Marist, St. Joseph, St. Patrick, and St. Viator. With the conference now at 14, the conference divided into two divisions. The East Division included the four new schools, Carmel, Notre Dame, and
Holy Cross High School. In 1971
St. Francis de Sales High School joined the East Division.
In 1974, the two divisions split forming the West Suburban Catholic Conference and the ESCC (in 1989, the West Suburban Catholic Conference would drop the "West" and return to using the original conference name). After one year, St. Joseph left to pursue one year as an independent school, and came back to replace St. Francis de Sales which left after the 1975-76 season. Joliet Catholic joined in 1982. The conference elected to expand in 1990 by adding Benet Academy and Marian Catholic.