Dolieb Hill was the first place in which the American Missionary begun their mission in Upper Nile Province in 1902, south of Malakal, twelve mile away. It had been the head quarter for the American Mission for evangelizing other places such  as Nasir, Abwong Akobo, Benitue and Pashila. The first Bible School was established there to train indigenous pastors to reduce the cost of training abroad.

The Presbyterian Church of the Sudan has been one presbytery for almost one hundred years and despite its rapid growth, no decision was made to decentralize the Church to become more effective and relevant to people whom they served. People spoke about the decentralization of PCOS in many different General Assembly meetings, which is an effective system of church governing within Presbyterian churches around the World. But these voices were over sighted due to logical reasons such as the war in Sudan for half a century and the lack of manpower to tackle these responsibilities. Read full background....