A Cathedral is a church that contains the Bishop’s Chair or “cathedra”which is symbolic of the bishop’s teaching ministry. The cathedral generally has a staff of clergy presided over by the Dean and assisted by clergy called Canons. Together with the laity, they carry out a program which includes worship, pastoral work, teaching and outreach. The cathedral is also available for many diocesan activities and is the principal church in which the bishop presides on special occasions.
Saint Mark’s was the cathedral for the Missionary District of Western Nebraska until that diocese merged with the Diocese of Nebraska in 1946. As a part of that merger, it was insisted that Saint Mark’s retain its designation as pro-cathedral representing the history and missionary culture of the western part of the Diocese.