O' Brennan family name history and map
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O' Brennan in 1911 Ireland
The 1911 Census recorded just 19 people named O' Brennan in Ireland: 10 men and 9 women.
Counties with O' Brennan in Ireland
Most O' Brennans were found in Dublin (10), with smaller numbers in Galway (6), Kilkenny (2) and Kildare (1).
O' Brennan average age in 1911
The average O' Brennan in 1911 was 20.7 years old, though with only 19 people recorded, averages like this should be taken loosely.
O' Brennan literacy in 1911
Of the O' Brennans whose literacy was recorded, 73.7% could both read and write, 0% could read but not write, and 26.3% could do neither.
O' Brennan common first names
Among the O' Brennans were men named Columbanus Brendan, Eugene Patrick Owen, Henry, James and John and women named Eliza, Elizabeth, Elizabeth Sheela, Julia and Kathleen.
O' Brennan occupations in 1911
Occupations were only recorded for a small share of O' Brennans. Among them were 9 at school, 1 recorded as blacksmith / smith, 1 recorded as general labourer, 1 recorded as housekeeper and 1 recorded as teacher.
What religion is O' Brennan?
O' Brennans were overwhelmingly Roman Catholic, 94.7% of them. The remainder were mostly Anglican (5.3%).
Visitor Notes
Review type for post source and surnames source type not found
Added by
Pete F
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O' Brennan statistics (1911)
Number: 19
Rank: 9,830
Average Age: 21
O' Brennan in the USA (2020)
Number: 0
Rank: 0
Note: If there were less than 100 in the USA census it will show as zero.
