Originally named "Los Angeles, Catholic Girls' High School," Bishop Conaty Memorial High School was opened in September, 1923. Sisters of Notre Dame taught with other communities at Conaty for several years. The school later merged with Our Lady of Loretto High School.
Sisters who taught or administered at the school include:
- Katherine Nelson (Katherine Mary), 1962-1966
- Dolores Pardini (Dolores Marie), 1970-1976, 1986-?>
- Diane Reese (Mary Ancilla), 1966-1970