In 1939 additional buildings became available for the dining hall and domestic science and in 1973 the Lady Julian Building, which had formerly housed its prep department, became part of Notre Dame High School. The prep department later became separate and is now an independent school.
In 1939, additional structures became available for the dining hall and domestic science, and in 1973, the Lady Julian Building, formerly used by the prep department, was incorporated into Notre Dame High School. The prep department later separated and now operates independently as a separate institution.