Gillan family name history and map
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Gillan in 1911 Ireland
The 1911 Census recorded 511 people named Gillan in Ireland; roughly one in every 8,600 people carried the name. The name was split fairly evenly between men and women: 257 men and 254 women.
Counties with Gillan in Ireland
Antrim was Gillan country: 36% of them (184 people) lived there in 1911. Next came Sligo (140), Derry (36), Mayo (32) and Galway (23).

Gillan average age in 1911
The average Gillan in 1911 was 30.1 years old, 29.7 for men and 30.6 for women; almost exactly in line with 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.
Gillan literacy in 1911
Of the Gillans whose literacy was recorded, 74.6% could both read and write, 4.9% could read but not write, and 20.5% could do neither. Men came out slightly ahead, 77.2% reading and writing against 72.1% 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.
Gillan common first names
The most common male names were John (40), James, Patrick, Thomas and Michael; the same five names that topped the list nationally. For women it was Mary (37), followed by Bridget, Annie, Margaret and Ellen; matching the national top five exactly.
Gillan occupations in 1911
The most common entry on a Gillan's census form was "Scholar"; 22.9% (117) were children at school. Among the rest, the most common occupations were farmer (18.4%), general labourer (4.3%), textile worker (2.9%) and farm labourer (2.7%). Grouped by sector, agriculture accounted for 21.1% of all Gillans, followed by textiles & clothing, general labourers and domestic service.
What religion is Gillan?
Gillans were predominantly Roman Catholic (80%). The remainder were mostly Presbyterian (10.8%), Methodist (4.7%), Anglican (1.6%) and Plymouth Brethren (1.6%).

Visitor Notes
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Added by
Pete F
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Gillan statistics (1911)
Number: 511
Rank: 1,330
Average Age: 30
Gillan in the USA (2020)
Number: 1,459
Rank: 18,678
Note: If there were less than 100 in the USA census it will show as zero.