In 1928, just 16 years after opening, the school had 800 students and a third addition. From the time of the school's opening, Ressi was the main feeder school of Resurrection High School, also of Resurrection parish, until the high school's closure in 1935. In 1938, a new, separate church building was erected, and the Resurrection Elementary was able to expand into what was formerly church quarters. By 1953, more than 1,300 students attended the school, and additional space was needed. Kindergarten and first grade moved into four classrooms in the converted church basement, and the gym was also divided into classrooms. In 1957, a new middle school annex with six classrooms was built, along with a new convent for the growing number of Sisters. Peak enrollment was in 1962, at about 2,000.