McLoughlin Surname in Ireland
The Griffith Valuation was a survey done in the years from
1848-1864 of everyone who owned and/or rented
land in Ireland. Since no census records of
Ireland exist for this time period, the Griffith
Valuation is the only way of learning who lived
where in Ireland at that time.
The map above shows the distribution of the
surname McLoughlin in Ireland in the mid-1800s as
listed in the Griffith Valuation of Ireland. The
color of a county indicates the how many
McLoughlins were listed as residing there in the
mid-1800s. Bright green indicates the counties
that had the largest number of McLoughlins. Lighter
shades of green indicate counties containing fewer
McLoughlins, while dark gray and light gray indicate
counties with even fewer McLoughlins. Counties that
contained less than 90 McLoughlins are not colored -
so the map only shows where 85% of the McLoughlins
were living.
According to the
historical account
the McLoughlin name originated in two separate
septs. One of these septs was centered in
Innishowen in County Donegal. The account states that
the name is still common in Counties Donegal and
Derry. This is in agreement with the distribution shown in the map.
The homeland of the second sept is not
specified.
There were 3500 people listed in the Valuation
with the surname of McLoughlin - and about a quarter of
these of these were in County Donegal.
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