 Nicol retired in 1991 at the age of 67 to Cambridge, where he died three years later at the age of 70.He was president of the World Federation of United Nations Associations from 1983 to 1987.Beginning in 1965 with "Two African Tales", Nicol was a published author of short stories, as well as poetry, music, academic literature and a biography of Africanus Horton, an early Sierra Leonean author and one of the founders of African Nationalism.