 The scheme of "planned giving" was adopted throughout Queensland, and was an important contributing factor which enabled the construction and adaptation of a large number of churches during the 1950-60s to accommodate the post Second World War increase in population, and later to reflect changes mandated by the Second Vatican Council decree on the liturgy.The construction of St Monica's War Memorial Cathedral was one of the major achievements of Bishop Cahill's episcopate.Bishop Cahill, however, never presided in the new cathedral as Bishop of Cairns.