Complex sentence: In 1958 he was the Australian representative at the World Conference of the International Missionary Council, in 1961 he was a delegate to the World Assemblies of the World Council of Churches at New Delhi and in 1968 at Uppsala.
Split into simpler sentences: In 1958 he was the Australian representative at the World Conference of the International Missionary Council. In 1961 he was a delegate to the World Assemblies of the World Council of Churches at New Delhi and in 1968 at Uppsala.