Dorrian family name history and map
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Dorrian in 1911 Ireland
The 1911 Census recorded 573 people named Dorrian in Ireland; roughly one in every 7,700 people carried the name. The name was split fairly evenly between men and women: 293 men and 280 women.
Counties with Dorrian in Ireland
The Dorrians were heavily concentrated in Donegal, home to 51.7% of them (296 people). Next came Down (202), Antrim (47), Tyrone (11) and Derry (10).

Dorrian average age in 1911
The average Dorrian in 1911 was 31.9 years old, 30.2 for men and 33.7 for women; slightly older than the national averages of 29.6 for men and 30.5 for women. That low figure reflects just how many children there were in Edwardian Ireland, along with high infant mortality and the limits of public health at the time. For comparison, average life expectancy in Ireland today is around 83.
Dorrian literacy in 1911
Of the Dorrians whose literacy was recorded, 74.8% could both read and write, 5.5% could read but not write, and 19.7% could do neither. Men came out slightly ahead, 78.2% reading and writing against 71.2% of women. Bear in mind these figures include young children; the census itself only counted people aged nine and over when calculating illiteracy, on the grounds that it was unfair to label a child illiterate before they'd had a chance to learn.
Dorrian common first names
The most common male names were John (47), James, Patrick, Hugh and William. For women it was Mary (32), followed by Bridget, Maggie, Sarah and Annie.
Dorrian occupations in 1911
The most common entry on a Dorrian's census form was "Scholar"; 20.4% (117) were children at school. Among the rest, the most common occupations were farmer (18.7%), textile worker (5.2%), farm labourer (4.9%) and seamstress (4.2%). Grouped by sector, agriculture accounted for 23.7% of all Dorrians, followed by textiles & clothing, general labourers and domestic service.
What religion is Dorrian?
Dorrians were predominantly Roman Catholic (85.9%). The remainder were mostly Anglican (7.7%), Presbyterian (4.2%), Plymouth Brethren (0.9%) and Congregationalist (0.2%).

Visitor Notes
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Added by
Pete F
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Dorrian statistics (1911)
Number: 573
Rank: 1,207
Average Age: 32
Dorrian in the USA (2020)
Number: 356
Rank: 61,001
Note: If there were less than 100 in the USA census it will show as zero.