Religion had been a casual interest for him until, while at Yale, he came under the influence of Dr. Henry B. Wright, Professor of Theology.

The nature of his work here was altered by the fact that the United States had declared war on Germany on April 6, 1917.

Construction, commenced on June 19 by the largest labor force ever assembled in the United States, raced at the rate of 10.4 new buildings every day.

Dun's principal work was as a civilian chaplain to the service men; the parish assisted him as they could.

During the war, union services of the Federated, Unitarian, and St. Andrew's parishes were held at the YMCA on West Main Street in Ayer.

After what must been an exhausting year and a half as vicar, he left in the spring of 1919 to continue his studies at the Universities of Oxford and Edinburgh.

Angus Dun was elected the fourth Bishop of the Episcopal Diocese of Washington on the third ballot.

[1] He was consecrated at Washington National Cathedral on April 19, 1944, in a service led by 10 bishops, including the Archbishop of York.

[2] In his inaugural sermon, he decried Americans' "lofty moral tone" and preached that patriotism and nationalism could be "evil" if not bound to God as well as the country.

[5] During the 18 years of his episcopate, Bishop Dun confirmed more than 31,000 people, ordained 105 deacons and 91 priests, and visited two and sometimes three parishes every Sunday.

He was named an Honorary Commander of the Order of the British Empire (CBE) by Queen Elizabeth II in 1953.

Such a life must bring its own rich sense of duty done and of rewards that lie beyond any earthly grasp.He was the author of nine books, including King's Cross: Meditations on the Seven Last Words (1926), Meanings of Unity (1937), Studies in Church Unity (1938), We Believe: A Simple Exposition of the Creeds (1938), Not By Bread Alone.