McGuinness/Field McGuinness/Field: Pedigree database as compiled by Roger McGuinness. (McGuinness) http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:2298700
McGuinness: Irish Sailor McGuinness: Irish Sailor: The life and mystery of Captain Charles John McGuinness, an Irish Sailor of fortune. (McGuinness) http://www.irishsailor.com/
McGuinness Tree McGuinness Tree: Family database as compiled by Denise McGuinness. (McGuinness) http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?db=:2204037
McGuinness Family McGuinness Family: Dedicated to the descendants of John McGuinness, Irish immigrant to Michigan, 1809-1874. (McGuinness) http://mcguinnessfamily.org/
McGuinness Online McGuinness Online: Science, culture, natural events, children and relationships as presented by Dr Tim McGuinness, PhD. Includes family tree and ancestral history. (McGuinness) http://www.mcguinnessonline.com/
McGuinness Variations McGuinness Variations: Ancestral heritage of Mike McGuinness. Features surname study including the variants MaGuinness, Maguiness, Magennis, Maginness, Maginnis, McGenis, McGennis, McGinnis, Guinness and McGuinnessy. (McGuinness) http://www.geocities.com/Heartland/Lane/7231/
Additional
Information: Sites which concern the collected family history of individuals or related surnames, rather than either a specific surname or 
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