McWilliam family name history and map

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McWilliam

McWilliam in 1911 Ireland

The 1911 Census recorded 290 people named McWilliam in Ireland; roughly one in every 15,000 people carried the name. The name was split fairly evenly between men and women: 152 men and 138 women.

Counties with McWilliam in Ireland

The McWilliams were heavily concentrated in Antrim, home to 50.7% of them (147 people). Next came Down (38), Dublin (38), Derry (26) and Monaghan (14).
Surname distribution map, 1911 census

McWilliam average age in 1911

The average McWilliam in 1911 was 27.0 years old, 25.4 for men and 28.8 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.

McWilliam literacy in 1911

Of the McWilliams whose literacy was recorded, 84.8% could both read and write, 2.1% could read but not write, and 13.1% could do neither. The figures were much the same for men and 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.

McWilliam common first names

The most common male names were William (15), John, Robert, James and Thomas. For women it was Mary (10), followed by Sarah, Maggie, Annie and Elizabeth.

McWilliam occupations in 1911

The most common entry on a McWilliam's census form was "Scholar"; 24.1% (70) were children at school. Among the rest, the most common occupations were farmer (7.2%), textile worker (5.5%), carpenter / joiner (3.1%) and clerk / office worker (3.1%). Grouped by sector, agriculture accounted for 8.6% of all McWilliams, followed by textiles & clothing, building & construction and professional.

What religion is McWilliam?

Most McWilliams, 54.5%, were Presbyterian. The remainder were mostly Anglican (20.3%), Roman Catholic (19.3%), Methodist (4.1%) and Congregationalist (0.7%).

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McWilliam statistics (1911)

Number: 290
Rank: 1,964
Average Age: 27

McWilliamin the USA (2020)

Number: 551
Rank: 42,381

Note: If there were less than 100 in the USA census it will show as zero. 

Ref: mcwilliam

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