1960-1979 Box 5, Folder 21 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series II: Writings, 1960-2007PoetryGeneral
1966-1972 Box 1, Folder 2 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series I: Correspondence, 1966-2007General Correspondence
1968-1979 Box 6, Folder 11 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series II: Writings, 1960-2007Short Works
1970s Box 12 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series IV: Subject Files, 1973-2005
1973-1976 Box 1, Folder 3 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series I: Correspondence, 1966-2007General Correspondence
1977-1982 Box 1, Folder 4 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series I: Correspondence, 1966-2007General Correspondence
1980-1989 Box 5, Folder 22 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series II: Writings, 1960-2007PoetryGeneral
1980-1989 Box 6, Folder 12 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series II: Writings, 1960-2007Short Works
1980s Box 14 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series IV: Subject Files, 1973-2005
1980s- 1990s Box 13 Rare Book & Manuscript Library William J. Higginson Papers, 1950-2007Series IV: Subject Files, 1973-2005