MACMILLAN ARCHIVE. Vol. CDLXV. Correspondence with Sir Henry Head; 1905-1926, n.d. Sir Henry Head, neurologist: Correspondence with Macmillan and Co.: 1905-1926, n.d.
MACMILLAN ARCHIVE. Vol. CXXXIII. Letters from Thomas Hughes; 1856-1863. Typewritten copies. Thomas Hughes, MP; author: Correspondence with Macmillan and Co.: 1856-1907, n.d: Partly copies.
MACMILLAN ARCHIVE. Vol. CXXXIV. Correspondence with Mrs Margaret O. Oliphant; 1858-1895, n.d. Margaret Oliphant Wilson Oliphant, novelist: Correspondence with Macmillan and Co.: 1858-1895, n.d.
MACMILLAN ARCHIVE. Vol. CLXIX. Correspondence with Rosa N. Carey; 1898-1909. Rosa Nouchette Carey, author: Correspondence with Macmillan and Co.: 1898-1909.