Borthwick Institute of Historical Research, University of York
www.york.ac.uk/inst/bihr

Bradford Local Studies Library
www.bradford.gov.uk/council/libraries (follow links to local studies)

British Library
www.bl.uk

Catholic History
www.catholic-history.org.uk

Catholic Central Library, London
www.catholic-library.org.uk

Diocese of Hallam
www.hallam-diocese.com

Diocese of Middlesbrough
www.middlesbrough-diocese.org.uk

Leeds Irish Historical and Cultural Society
www.lihcs.org.uk

Leeds Local Studies Library
www.leeds.gov.uk (follow links from main site to Local and Family History section)

National Archives
www.nationalarchives.gov.uk

North Yorkshire County Record Office
www.northyorks.gov.uk/archives

Thoresby Society, Leeds
www.thoresby.org.uk

West Yorkshire Archives Service
www.archives.wyjs.org.uk

Yorkshire Archaeological Society
www.yas.org.uk