In January 1956 at the age of 81, after a heart ailment of less than a week Dunn died at his home in St. Andrews, New Brunswick. In commemoration of his birthday, in the same year, Lady Dunn privately published "The Ballad of a Bathurst Boy: 1874-1956," a celebration of her late husband's life in verse. Printed by the University of New Brunswick Press in Fredericton, NB, it was sent to friends and family of Dunn. His widow sold the 10,000 acre camp he had acquired near his birthplace the next year. One source places this parcel on Dunn Road near Allardville, New Brunswick.