Family Tree DNA
www.familytreedna.com/public/ClanDalton/
Genetic Genealogy Ireland/Maurice Gleeson
http://ggi2013.blogspot.co.uk/p/finding-your-irish-ancestors-online.html
Dalton Gang Newsletter
National Archives/Census of Ireland
www.census.nationalarchives.ie
Irish Family History Foundation
GEDmatch
http://v2.gedmatch.com/login1.php
Catholic Parish Registers/National Library of Ireland
IreAtlas Townland Data Base
The Down Survey of Ireland