O'Callahan family name history and map
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O'Callahan in 1911 Ireland
The 1911 Census recorded just 36 people named O'Callahan in Ireland: 18 men and 18 women.
Counties and map with O'Callahan in Ireland
Most O'Callahans were found in Limerick (13), with smaller numbers in Cork (11), Clare (5), Antrim (4) and Derry (2).
O'Callahan average age in 1911
The average O'Callahan in 1911 was 21.7 years old, though with only 36 people recorded, averages like this should be taken loosely.
O'Callahan literacy in 1911
Of the O'Callahans whose literacy was recorded, 91.2% could both read and write, 0% could read but not write, and 8.8% could do neither.
O'Callahan common first names
Among the O'Callahans were men named Michael (4), Cornelius (2), David (2), James (2) and Denis and women named Mary (7), Margaret (4), Anne, Emily and Hannah.
O'Callahan occupations in 1911
The most common entry on an O'Callahan's census form was "Scholar"; 38.9% (14) were children at school. Among the rest, the most common occupations were textile worker (8.3%), domestic servant (5.6%), farmer (5.6%) and carter / driver / groom (2.8%).
What religion is O'Callahan?
O'Callahans were overwhelmingly Roman Catholic, 100% of them.
Visitor Notes
Review type for post source and surnames source type not found
Added by
Pete F
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O'Callahan statistics (1911)
Number: 36
Rank: 6,887
Average Age: 22
O'Callahan in the USA (2020)
Number: 339
Rank: 63,550
Note: If there were less than 100 in the USA census it may show as zero.
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