The National Library of Wales contributes to the growth of interest in family history by:
- expanding and updating its range of sources regularly
- producing indexes to important sources like wills and marriage bonds
- publishing guides for the location of parish registers and Nonconformist registers
- disseminating information leaflets about its own holdings
- making its holdings more accessible through the computerisation of lists and indexes
- providing first-class facilities for family historians to do their research
- maintaining a list of independent researchers
- cooperating with similar institutions and family history societies