Collection primarily consists of memorabilia and newspaper clippings, collected by Willan's son, Patrick Willan. Files include correspondence and minutes of the Healey Willan Centennial Celebration Committee, 1978-1980; programmes, 1936-1980; clippings, 1936?-1965; programmes and clippings of Willan's opera, Deirdre; obituaries and memorials, 1968; Church of St. Mary Magdalene, 1979-1980; Willan Centenary, 1980; articles on Willan, 1980-1981; memorabilia, 1968-1979; and photographs of Willan with family and musicians.