Fonds comprises letters to Day in his capacity as newspaper editor, two scrapbooks of newspaper clippings related to Ireland, and an unsigned typescript article about the Halifax & South Western Railway Company.
The fonds includes manuscripts of most of his published works—novels, short stories, articles, radio broadcasts and plays, and forewords for other works—from 1929 to 1976; research notes and general historical studies; sound recordings; correspondence covering the years 1914 to 1994 (including letters with other authors and his publishers, among others); diaries (closed at the author's request until 2019); photographs; memorabilia; material related to his father who fought and died in World War I; and several scrapbooks containing reviews of his books, clippings, and other research material.
