O'callaghan Family History

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O'callaghan Name Meaning

Irish: from Gaelic Ó Ceallacháin ‘descendant of Ceallachán’, a diminutive of the personal name Ceallach, possibly meaning ‘lover of churches’, from ceall ‘church’, or (more likely) ‘bright-headed’, from cen ‘head’ + lach ‘light’. This name was borne by a 10th-century king of Munster, from whom many present-day bearers of the surname claim descent.

Source: Dictionary of American Family Names ©2013, Oxford University Press

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O'callaghan Family Origin

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O'callaghan Family Occupations

What did your O'callaghan ancestors do for a living?

Census records can tell you a lot of little known facts about your O'callaghan ancestors, such as occupation. Occupation can tell you about your ancestor's social and economic status.

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  • Keeping House

    15%
  • Laborer

    12%
  • Carpenter

    4%
  • Catholic Priest

    4%

In 1880, Keeping House, Laborer and Carpenter were the top 3 reported jobs worked by O'callaghan. A less common occupation for the O'callaghan family was Catholic Priest. The most common O'callaghan occupation in the USA was Keeping House. 15% of O'callaghan's were Keeping Houses.

Source: Census data for O'callaghan | Data not to scale

O'callaghan Historical Records

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Census records can give you a fascinating window into the day-to-day lives of your O'callaghan ancestors - like hours worked per week, level of education, veteran status, employers, and more.

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O'callaghan Life Expectancy

What is the average O'callaghan lifespan?

An unusually short lifespan might indicate that your O'callaghan ancestors lived in harsh conditions. A short lifespan might also indicate health problems that were once prevalent in your family. The SSDI is a searchable database of more than 70 million names. You can find birthdates, death dates, addresses and more.

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United States

Famous O'callaghan Family

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Frank Lloyd Wright1867 - 1959 (91)
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Ansel Easton Adams1902 - 1984 (82)
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Babe Ruth1895 - 1948 (53)
Ansel Easton Adams1902 - 1984 (82)

Mark Twain1835 - 1910 (74)
Nikola Tesla1856 - 1943 (86)
Victor Hugo1802 - 1885 (83)
Abraham Lincoln1809 - 1865 (56)
Mark Twain1835 - 1910 (74)
Nikola Tesla1856 - 1943 (86)
Victor Hugo1802 - 1885 (83)
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