| RefNo | Title | Source |
| WP/1/3/30 | Letter from Alfred Russel Wallace to his mother (Mary Anne Wallace) | |
| WP/1/3/31 | Letter from John Wallace, from Columbia | |
| WP/1/3/28 | Letter from Alfred Russel Wallace to his mother (Mary Anne Wallace) | |
| WP/1/3/27 | Letter from Alfred Russel Wallace to George Silk | |
| WP/1/3/37 | Letter from Alfred Russel Wallace to Fanny (Mrs Thomas Sims) | |
| WP/1/3/29 | Letter from Alfred Russel Wallace to his mother (Mary Anne Wallace) | |
| WP/1/3/34 | Letter from Alfred Russel Wallace to Fanny, (Mrs Thomas Sims) | |
| WP/1/3/32 | Letter from Alfred Russel Wallace to his mother (Mary Anne Wallace) | |