Saint Peter, Slippery Rock

St. Peter was established in 1938.  The foundation of the parish can be traced to a survey of local Catholics conducted in 1934 by the Missionary Confraternity of Christian Doctrine (MCCD).  The diocese formed the MCCD to bring religious instruction to Catholics living in small, isolated communities who lacked access to an existing church.  Based on this survey, the bishop gave permission for the MCCD to start a mission for the 35 families living in the area and the Catholic students attending the State Teachers College.  A priest from St. Fidelis Seminary in Herman began visiting Slippery Rock and celebrating Mass in Grange Hall.  On August 22, 1937, ground was broken for a new church.  The cornerstone of the church was laid on May 22, 1938, and the completed church was dedicated on November 13, 1938.

The parish remained a mission of St. Fidelis Seminary until 1955.  On June 16, 1955, the parish became independent.  St. Anthony, Forestville was assigned as a mission to St. Peter.

In 1993, St. Anthony parish, Forestville was suppressed and the congregation was assigned to St. Peter.  St. Peter parish maintains both St. Peter and St. Anthony Churches.