All the letters are arranged alphabetically by correspondent and by date under each name.

Hargrave, Mary.

Letter, 1899, of Mary Hargrave to John Murray IV. Folios 1-2.

Hargreaves, John.

Letter, c1893, of John Hargreaves to John Murray IV. Folio 3.

Hargrove, William. Letter, 1836, of William Hargrove to John Murray II. Folios 4-5.

Harington, Charles Sumner.

Letter, 1863, of Charles Sumner Harington to John Murray III. Folios 6-10.

Folio 10. Letter, 1863, of an unidentified correspondent to John Murray III, recommending Charles Sumner Harington as a tutor.

Harington, M N.

Letter, 1903, of M N Harington to John Murray IV. Folios 11-14.

Harington, Thomas Cudbert.

Letter, 1850, of Thomas Cudbert Harington to John Murray III. Folio 15.

Harker, Lizzie Allen.

Letters, 1909 and 1922, of Lizzie Allen Harker to John Murray IV. Folios 16-19.

Harman, Edward George.

Letter, 1913, of Edward George Harman to John Murray IV. Folio 20.

Harman, Harold.

Letter, 1924, of Harold Harman to John Murray IV. Folio 21.

Harman, John.

Letter, 1854, of John Harman to John Murray III. Folios 22-23.   Harmsworth, Alfred Charles William.

Letter, 1913, of Alfred Charles William Harmsworth, Viscount Northcliffe, to John Murray IV. Folio 24.

Harmsworth Brothers Ltd.

Letters, 1901, of Percy Livingstone Parker on behalf of Harmsworth Brothers Ltd. to John Murray IV. Folios 25-30.

Folio 26. Letter, 1901, of Samuel Smiles (1852-1902) to Charles Edward Lawrence.

Folios 29-30. Letters, 1901, of Samuel Smiles (1852-1902) to John Murray IV.

Harness, Henry Drury.

Letter, 1848, of Sir Henry Drury Harness to John Murray III. Folios 31-32.

Harness, William.

Letters, 1821-1822, 1824-1825, 1827, 1829-1831, 1833-1835, 1839, 1843, 1848, 1850-1854, 1864, 1868 and undated, of William Harness to John Murray II and John Murray III. Folios 33-125.

Folio 111. Letter, 1852, of Lady Mildred Arabella Charlotte Henrietta Beresford Hope to William Harness. Sent as an enclosure of letter, 1852, of William Harness to John Murray II, folios 109-110.

Harney, George Julian.

Letters, 1869, 1880, 1885 and 1886, of George Julian Harney to John Murray III. Folios 126-145.