McMillen family name history and map
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McMillen in 1911 Ireland
The 1911 Census recorded 298 people named McMillen in Ireland; roughly one in every 15,000 people carried the name. The name was split fairly evenly between men and women: 148 men and 149 women. (A small number, 1, had no sex recorded.)
Counties with McMillen in Ireland
The McMillens were heavily concentrated in Antrim, home to 58.7% of them (175 people). Next came Down (94), Derry (10), Dublin (6) and Armagh (5).

McMillen average age in 1911
The average McMillen in 1911 was 27.8 years old, 25.6 for men and 30.0 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.
McMillen literacy in 1911
Of the McMillens whose literacy was recorded, 83.2% could both read and write, 3.1% could read but not write, and 13.6% could do neither. Women came out slightly ahead, 84.4% reading and writing against 82% of men. 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.
McMillen common first names
The most common male names were Thomas (18), James, Samuel, Robert and John. For women it was Mary (11), followed by Agnes, Sarah, Maggie and Annie.
McMillen occupations in 1911
The most common entry on a McMillen's census form was "Scholar"; 17.8% (53) were children at school. Among the rest, the most common occupations were textile worker (8.4%), farmer (4.4%), farm labourer (3.4%) and other maker / factory worker (3.4%). Grouped by sector, textiles & clothing accounted for 12.1% of all McMillens, followed by agriculture, manufacturing & trades and domestic service.
What religion is McMillen?
Most McMillens, 55.4%, were Presbyterian. The remainder were mostly Anglican (24.2%), Congregationalist (5.7%), Roman Catholic (4%) and Methodist (3.4%).

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Added by
Pete F
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McMillen statistics (1911)
Number: 298
Rank: 1,925
Average Age: 28
McMillen in the USA (2020)
Number: 9,885
Rank: 3,522
Note: If there were less than 100 in the USA census it will show as zero.
Ref: mcmillen
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