Warren David Nelson, born in Belfast in 1938, grew up in Drogheda, Co. Louth; after working in textiles he became a minister in the Church of Ireland. In 1982 he was instrumental in founding the Irish Bible School in Coalbrook, Co. Tipperary, and through this and other agencies he was deeply involved in remarkable spiritual changes in the Irish Republic. In 2000 the Irish Bible School merged with the School of Biblical Christianity to form the Irish Bible Institute, based in Dublin.
Nelson visited Australia while researching material for his book T.C. Hammond: Irish Christian.