in the US
2000 US Census
The surname HANNIHAN is not included in the US Census Bureau's ranking of surnames with 100 or more people. Since fewer than 100 people with this surname were included in the 2000 Census, it is relatively uncommon.
Data: Frequently Occurring Surnames from Census 2000", US Census Bureau.
Graves on Histopolis
Histopolis currently has
0 grave(s) with the surname
Resource Links for
Hannihan Genealogy and Family History Research [DistantCousin.com]
Hannihan Family Genealogy Forum [GenForum - Genealogy.com]
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