In 1953, Marshall closed as a senior high and ten years later, Wilson would also close, with most of its students attending the newly built Highland Park High School. In 1976, one of its original members, Mechanic Arts, was closed, and in a span of two years from 1977 to 1978, Monroe, Washington, and Murray high schools would do the same. Most of the students from Washington and Murray were incorporated into Como Park Senior High School.
In 1953, Marshall stopped operating as a senior school, followed by Wilson's closure ten years later. The majority of its pupils transferred to the newly built Highland Park High School. Mechanic Arts department was eliminated in 1976, and between 1977 and 1978, Monroe, Washington, and Murray high schools also closed, with their students being absorbed into Como Park Senior High School.