| Letter to William Porter | 30 April 1858 | Livingstone, David, 1813-1873; Maclear, Thomas, 1794-1879 | Porter, William, 1805-1880 | [Cape Town] | | | autographs (manuscripts); copies (derivative objects); letters | National Archives and Records Service of South Africa: Maclear Papers, Acc. 515 | | | Letters, 0785 | liv_001312 |
| Powers of Attorney to William Porter | 30 April 1858 | Livingstone, David, 1813-1873; Maclear, Thomas, 1794-1879 | Porter, William, 1805-1880 | [Cape Town] | | | copies (derivative objects); powers of attorney | Royal Greenwich Observatory. Archives: 15/52/369 | MS. 20313 | | Documents, 18.2 | liv_002839 |