O'Mullan family name history and map
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O'Mullan in 1911 Ireland
The 1911 Census recorded 69 people named O'Mullan in Ireland; roughly one in every 64,000 people carried the name. The name was split fairly evenly between men and women: 33 men and 36 women.
Counties with O'Mullan in Ireland
The O'Mullans were heavily concentrated in Antrim, home to 91.3% of them (63 people). Next came Derry (6).

O'Mullan average age in 1911
The average O'Mullan in 1911 was 28.7 years old, 32.0 for men and 25.7 for women; a touch younger 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.
O'Mullan literacy in 1911
Of the O'Mullans whose literacy was recorded, 70.6% could both read and write, 7.4% could read but not write, and 22.1% could do neither. Men came out slightly ahead, 72.7% reading and writing against 68.6% 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.
O'Mullan common first names
The most common male names were William (5), Charles, Daniel, George and Jermiah Sylvester. For women it was Ellen (4), followed by Annie, Elizabeth, Margaret and Elizabeth Alice.
O'Mullan occupations in 1911
The most common entry on an O'Mullan's census form was "Scholar"; 24.6% (17) were children at school. Among the rest, the most common occupations were farmer (10.1%), carter / driver / groom (2.9%), general labourer (2.9%) and mason / bricklayer (2.9%). Grouped by sector, agriculture accounted for 11.6% of all O'Mullans, followed by building & construction, general labourers and textiles & clothing.
What religion is O'Mullan?
O'Mullans were predominantly Roman Catholic (84.1%). The remainder were mostly Presbyterian (14.5%) and Anglican (1.4%).
Visitor Notes
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Added by
Pete F
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O'Mullan statistics (1911)
Number: 69
Rank: 4,801
Average Age: 29
O'Mullan in the USA (2020)
Number: 0
Rank: 0
Note: If there were less than 100 in the USA census it will show as zero.

