| BL | British Library |
| CMS | Church Missionary Society |
| DNB | Oxford Dictionary of National Biography (online) |
| Hull | Hull University Archives |
| LAD | Liberated African Department (Sierra Leone Archives) |
| LMS | London Missionary Society |
| NA | National Archives |
| NMM | National Maritime Museum |
| Oxford | Oxford University (Weston Library) |
| SLA | Sierra Leone Archives |
| SLC | Sierra Leone Company |
| [n.d.] | No Day provided (only month and year) |
| [n.l.] | No Location/Address provided |
N.B. The missionaries’ journals do not usually specify a location, unlike their letters.