Brennan Family History & Genealogy

13 photos, 46,104 biographies, and last name history of the Brennan family, shared by AncientFaces Members.
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Latest Brennan Photos

These photos contain people with the Brennan last name.

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Biographies & Family Trees

Most Common First Names

  • John 7.8%
  • Mary 5.2%
  • James 5.1%
  • Thomas 4.2%
  • William 4.0%
  • Edward 2.3%
  • Joseph 2.3%
  • Michael 2.2%
  • Margaret 2.2%
  • Patrick 1.9%
  • Catherine 1.5%
  • Robert 1.4%
  • Brennan 1.3%
  • Elizabeth 1.2%
  • Francis 1.1%
  • Charles 1.0%
  • George 1.0%
  • Martin 0.9%
  • Helen 0.9%
  • Anna 0.8%

Brennan Last Name History & Origin

History

Name Origin

Nationality & Ethnicity

Early Brennans

These are the earliest records we have of the Brennan family.

Brennan Death Records & Life Expectancy

According to our database of 26,095 people with the last name Brennan that have a birth and death date listed:

Life Expectancy

66.6 years

Oldest Brennans

These are the longest-lived members of the Brennan family on AncientFaces.

Other Brennan Records

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Memories

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