5 volumes · UK National Archives
| Reference | Volume Title | TNA |
|---|---|---|
| CO 404/1 | Letters from Secretary of State: Offices and Individuals | ↗ |
| CO 404/2 | Letters from Secretary of State: Despatches | ↗ |
| CO 404/3 | Letters from Secretary of State: Offices and Individuals | ↗ |
| CO 404/4 | Letters from Secretary of State: Despatches | ↗ |
| CO 404/5 | Entry Book of Correspondence | ↗ |