Wilbur Glenn Voliva succeeded Dowie as General Overseer of Zion in 1906 and renamed the church to "Christian Catholic Apostolic Church". He kept tight control on his some 6000 followers, which made up the community, even up to the point of dictating their choice of marriage partners. All real estate in Zion, while sold at market rates, was conveyed under an 1100-year lease, subject to many restrictions and subject to termination at the whim of the General Overseer. Religions other than the Christian Catholic Apostolic Church were effectively banned - visiting preachers from rival sects were harassed and hounded out of town by the city police force.