Located in the Roman Catholic Diocese of Pittsburgh, it is a ministry of the Felician Sisters.

By the late sixties, the aspirancy and the boarding facilities were phased out and OLSH was ready to enter a new era.

In 1970, with the permission of the diocese of Pittsburgh and the approval of the administration of the Felician Sisters, the first boys were admitted to OLSH.

The years that followed have seen a steady increase in numbers and in programs and activities for both young men and women at OLSH.

The OLSH Athletic Program offers twenty interscholastic sports teams for students.