Earlier letters on a particular matter are located with the last letter on the subject and arranged:
- 1826-32 (by registered number);
- 1833-49 (in subject bundles, usually according to the last person who handled the matter);
- 1850+ (by registered number).
For a searchable database of the item list for this series see Colonial Secretary's Correspondence Guide.
A partial index is available on State Records web site Index to Miscellaneous Immigrants, 1828-43.
This description, as amended, is extracted from Concise Guide to the State Archives of New South Wales, 3rd Edition 2000.