The catalogue includes all records which have been fully catalogued. It also includes the books and pamphlets in our searchroom reference library. However we only have paper lists for many of our collections (references which contain numbers only or prefixed T). If you cannot find what you are looking for, try looking at our user guides for popular topics, or e-mail us with your enquiry.
The catalogue does not include images of documents. If you are unable to come in and view the records yourself, you can either order copies, or if more detailed research is required, use our paid research service. Note that the catalogue is not a personal-name index (although it should include reference to paper indexes where these exist): you will usually need to search the original records to determine whether a document actually includes information about a particular person.