| # | Reference code | Title | Dates | Access restrictions |
|---|---|---|---|---|
| 1 | IE OH OHS77/1/1/2 | Letters from John Rice Lamb to William Lamb. | 19 Jan 1855 - 22 Oct 1864 | None |
| 2 | IE OH OHS77/1/1/5 | Letters from Sally Lamb to William Lamb. | 31 Mar 1857 - 11 Dec 1857 | None |
| 3 | IE OH OHS77/1/1/6 | Letters from Mary Lamb to William Lamb. | 31 May 1858 - 7 Jun 1858 | None |
| 4 | IE OH OHS77/1/1/14 | Envelopes addressed to William Lamb. | None |