Join
Log in  | New? Register
Planning a trip to England?

9,244 HENNESSEY members around the world

Stay informed about HENNESSEY Family online & offline events!

Keep me informed as to HENNESSEY Family online & offline events

My HENNESSEY family came from?

See our recent family gatherings

HENNESSEY Family History

Sorry, with over 152k surnames to research we haven’t gotten to the HENNESSEY family history yet.

You can create the first HENNESSEY crest using our very own crest builder which uses real heraldic imagery on our feature to the right.

You can also sponsor the research of the HENNESSEY family:

You can see an example of an sponsored researched surname clicking here

Family Coat of Arms Generator

Why not see what your family crest could look like based on your own family characteristics?

Create Crest
MEET

Join the conversation with the HENNESSEY tribe

  • Find your HENNESSEY ancestor
  • Tell us about your HENNESSEY Family
  • Tell us about your HENNESSEY ancestors
  • Ask a question about the HENNESSEY history
  • Leave a message for HENNESSEY family members
Deborah Fitzgerald

William Hennessey and Mary J. Hennessey were both born in Ireland and came to New York, USA where in August 1876 they gave birth to a son, William A Hennessey in Manhattan, New York, USA. I believe William A. was my biological grandfather. His son, Michael J. Hennessey Sr was my biological father. I'd like to learn where I came from and where the family is in Ireland. My husband's family is from Ireland and we plan to go visit and hope to locate relatives. Thank you

Caron Stajduhar (Hennesse

I am trying to find ancestors in Clare County Ireland or wherever they may be in Ireland. My moms maiden name was McIlvoy.

Invite more HENNESSEY family members!

Write an email address and click 'Invite' to share this page with more members of the HENNESSEY tribe.

Log in or Register to invite others
LEARN

Discover where the HENNESSEY Family members live around the world

Explore where tribe members live today!

SHOP

Show off the HENNESSEY Family Crest…

Wear your crest with pride...plenty of products to choose from