 Years after her death, O’Dunne would later remarry to Mrs. Helen Keep in 1950.Eugene O'Dunne is also the older brother of noted Santa Fe society columnist and author Brian Boru Dunne (1877–1962), who wrote for "The Santa Fe New Mexican" for most of the first half of the 20th century.He died in 1959 in Ogunquit, ME at a home belonging to his second wife.