Creighton Preparatory School is a private, Jesuit high school founded in 1878 for young men. The school is located in the Roman Catholic Archdiocese of Omaha at 7400 Western Avenue in central Omaha, Nebraska, United States. It has an enrollment of 1,029 students.HistoryCreighton was founded in 1878, later separating into Creighton Preparatory School and Creighton University. The school was named after Edward Creighton, an Omaha businessman whose wife, Mary Lucretia, left their fortune to the Roman Catholic bishop to build a school for boys. At that time, the school was given to the Society of Jesus, known more commonly as the Jesuits. The initial enrollment was 120 students.