 Dwight Leslie Armstrong died of prostate cancer on 17 November 1984 at the age of 80, and was buried on 23 November 1984, in Quilcene, Washington, about a half-hour drive from Sequim, Washington, where he and his family lived.According to a 1985 issue of the Ambassador Report, his funeral was attended by his wife Karen, his twin sister Mary Lucile Edmonson of Ashland, Oregon, many Worldwide Church of God ministers, Roderick C. Meredith, and nephew Garner Ted Armstrong.His daughter, Deborah Armstrong was also in attendance.