Grealis family name history and map
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Grealis in 1911 Ireland
The 1911 Census recorded 84 people named Grealis in Ireland; roughly one in every 52,000 people carried the name. There were noticeably more men than women recorded: 52 men to 32 women.
Counties with Grealis in Ireland
The Grealises were heavily concentrated in Mayo, home to 100% of them (84 people).

Grealis average age in 1911
The average Grealis in 1911 was 27.6 years old, 25.3 for men and 31.4 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.
Grealis literacy in 1911
Of the Grealises whose literacy was recorded, 57% could both read and write, 1.3% could read but not write, and 41.8% could do neither. Men came out slightly ahead, 60.4% reading and writing against 51.6% 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.
Grealis common first names
The most common male names were Michael (10), Pat, Patrick, Peter and John. For women it was Mary (11), followed by Margaret, Anne, Bridget and Julia.
Grealis occupations in 1911
The most common occupation among Grealises was farmer, 29.8% of them (25 people). Next came scholar / student (16.7%), gardener (3.6%), farm labourer (2.4%) and general labourer (1.2%). Grouped by sector, agriculture accounted for 35.7% of all Grealises, followed by domestic service, general labourers and textiles & clothing.
What religion is Grealis?
Grealises were overwhelmingly Roman Catholic, 98.8% of them. The remainder were mostly Anglican (1.2%).
Visitor Notes
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Added by
Pete F
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Grealis statistics (1911)
Number: 84
Rank: 4,296
Average Age: 28
Grealis in the USA (2020)
Number: 151
Rank: 120,768
Note: If there were less than 100 in the USA census it will show as zero.
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