"In the present convent residence north of the church. During the late war a one-story brick building was erected south of the church, to which the school was removed. It was taught by lay teachers for several years, and was then placed in charge of the Sisters of St. Francis, who have since been succeeded by the Sisters of Mercy. The present school building, east of the church, was erected in 1889, at a total expense of about $7,000. It is a substantial two story brick structure, with basement, contains four school rooms, and was opened in the fall of 1889. The attendance is about 125. "

St. Michael's started in the church basement in 1921 and the first school building on Monroe St. was occupied in January 1922.

Father William A. Nolan founded Saint Paul School in 1888, and the Sisters of Mercy accepted his invitation to form the faculty.  The original school consisted of just two classrooms.  Sister Mary Teresa and Sister Mary Justiana were appointed the first teachers, while Sister Mary Helena fulfilled the domestic duties of the convent.

In 1889 another classroom was added, and music and voice became a part of regular studies.  Sister Mary Agnes was appointed the first music teacher at Saint Paul School.  Again in 1891 more classrooms were added to the original structure.  At that time Sister Margaret Mary was appointed as art instructor.

By 1902 the school had expanded to eight classrooms and remained at that capacity for more than forty years.  After the conclusion of World War II and with the industrial expansion of the Butler area the original buildings were most inadequate and under the guidance of Monsignor William J. Spiegel new spacious facilities were erected.

The basic purpose of the educational philosophy of Saint Paul School is to develop within each student, through an approved program, a Christian personality.  This Christian personality will be well-balanced spiritually, intellectually, aesthetically, socially and physically, so as to enable each student to live as a true and useful citizen in this world and be worthy of eternal life in the next.  Through the years the Sisters and other teachers of Saint Paul School have guided youth toward successful futures.

In 1956 a section of the School was devoted to the training of exceptional children. This was the first center for these children in Butler County.  Since the opening of this department, specially designed and equipped, this center has provided training for more than 100 Butler County children under the direction of a specially trained Sister and the Catholic Child Center of the Diocesan Schools Department. 

In 1969, Butler Catholic School was formed by the merging schools of St. Paul, St. Peter and St. Michael Parishes.  St. Andrew and St. Fidelis parishes joined the merger in the late 1970's.

Today, Butler Catholic server the area of seven school districts:  Butler, South Butler, Mars, Moniteau, Karns City, Seneca Valley and Slippery Rock.
The mission of the Catholic School, and therefore of Butler Catholic School, is the proclamation of the message of Jesus, and the formation of an extended family community of faith and service.  The mission is directed both within the school and outward toward the service of others.

The faculty and staff of Butler Catholic strive to provide an exemplary Christ-centered educational process through which the authentic teachings of the Catholic Church are transmitted to our students in a loving and caring atmosphere that will encourage a thirst for learning, a hunger for truth, and a commitment to live a life based upon the teachings they have received.