Complex sentence: Mount Senario College (Mt. Senario) was a private non-profit college located in Ladysmith, Wisconsin, in the Diocese of Superior, having roots to 1930; it opened in 1962 affiliated with the Catholic Servants of Mary (Servite Sisters).
Split into simpler sentences: Mount Senario College (Mt. Senario) was a private non-profit college located in Ladysmith, Wisconsin, in the Diocese of Superior. The college opened in 1962 affiliated with the Catholic Servants of Mary (Servite Sisters).