Elementary schooling at the orphanage featured better equipped classrooms than the original building. A few years after operations moved in 1911, the school offered a two-year business program. By 1948 the orphanage comprised the Lisle Manual Training School for Boys and the Lisle Industrial School for Girls, both of which were managed by the Sisters of St. Benedict and run by the Archdiocese of Chicago. In the 1950s Petru Hall was built as an annex on the east side of the dormitory building.