Cofrestrau Sifil

• Eve McLaughlin, St. Catherine's House (FFHS, 1991)


• Jeremy Gibson, General Register Office and International Genealogical Indexes: Where to Find Them (FFHS, 1987)

Cyfrifiadau

• Edward Higgs, Making Sense of the Census: the Manuscript Returns for England and Wales, 1801-1901 (London: HMSO, 1989)


• Edward Higgs, A Clearer Sense of the Census: The Victorian censuses and historical research (London: HMSO, 1996)


• Susan Lumas, Making use of the Census (London: PRO, 1992)


• Jeremy Gibson and Elizabeth Hampson, Marriage and Census Indexes for Family Historians ( FFHS, 2000)


• Sue Lumas, An Introduction to the Census Returns of England and Wales (FFHS, 1992)

Mynegai Achyddol Rhyngwladol (IGI)

• Jeremy Gibson and Michael Walcot, Where to Find the International Genealogical Index


• Chris Pitt Lewis, 'Using the IGI for Wales and Monmouthshire' in Jeremy Gibson, General Register Office and International Genealogical Indexes: Where to Find Them (FFHS, 1987), 31–36