The Rhiwderin Archive is essentially in two parts.
Firstly, there is a collection of archival items that has been given to the WRRC and which has come from disparate and frequently uncertain sources; this is the WRRC Collection.
Secondly, there are several separate collections of material and research notes assembled by individuals and passed to the WRRC en bloc. Any archival material will be extracted and collated into a Research Collection in that individual's name. Anything not archival, in the WRRC's interpretation of the term, will also be collated but placed in the Members' Studies section and credited as such to the donors.
The international cataloguing standards have been taken into account whilst compiling the catalogue, with a number modifications to suit the requirements of our own group and others researching in this field.