In 1962 CHISZ was formed with nine member headmasters: those of Arundel, Bishopslea, Chisipite, Eagle, Falcon, Peterhouse, St. Peter's, Springvale, Whitestone and Bernard Mizeki College. Their purpose was mutual support and encouragement. By the mid-1970s, twenty-four schools attended the Conference. A dip then followed leading up to independence with only nine members attending in 1981. However, the Independence War years had led to a number of member schools closing down, including two of its founder members (Eagle and St. Peter’s), while two other founder member schools closed but did re-open (Whitestone and Springvale).