Grant DNA in Ireland

First we consider where the surname Grant is to be found. Two good sources that give the whole of Ireland are Griffiths (largely taken between 1848 and 1864) and the 2008 telephone books

Grant distribution - Griffiths 1848-64.
Grant distribution - phone book 2008

There are perhaps 4 different sources of the surname Grant in Ireland, and one should therefore be able to pinpoint their origins using DNA

1. The Norman Grants who settled in Kilkenny and Waterford in 1169, lost their lands under Cromwell, and spread up into Tipperary and to Europe. There are two geographically distinct groups of Catholics and Protestants. You can see them clustered in the counties of Waterford, Kilkenny and Tipperary even today. These are probably the group that spread into Wexford and Wicklow.

My own dna is M222, which is odd in that my family should not have a NW Ireland y-dna, unless a Non Paternal Event has occurred. Comparison with other Grants from this group should enable me to see when the NPE occurred. My initial conjecture is that it dates from the Cromwellian wars around 1650.

2. Scots Irish settlers in Ulster, who one would expect to be Presbyterian. One would expect most of the Antrim Grants to come from this group.

3. The Newry, Armagh & Louth Grants who appear to have been native Irish who adopted the name. Today the majority are in Newry (114 of the 2008 Down entries have Newry post codes) I would expect this group to be Catholic

4. The Donegal Grants, who were virtually all Granny in 1850 and all Grant by 1910

5. A small group has appeared in Mayo, which I would assume to be a change of name by native Irish, and be Catholic.

  match in 37     R1b1b2      
Locus DYS#

21345 David Grant

43215 Grant 25705 Grant (Louth)     Niall of Nine Hostages
1 393 13 13 13     13
2 390 25 25 24     25
3 19 (aka DYS 394) 14 14 14     14
4 391 10 11 11     11
5 385a 11 11 11     11
6 385b 13 13 14     13
7 426 12 12 12     12
8 388 12 12 12     12
9 439 12 12 11     12
10 389-1 13 13 13     13
11 392 14 14 13     14
12 389-2 29 29 29     29
13 458 18 17 16     17
14
459a 9 9 9     9
15 459b 10 10 10     10
16 455 11 11 11     11
17 454 11 11 11     11
18 447 25 25 25     25
19 437 15 15 15     15
20 448 18 18 19     18
21 449 30 30 30     30
22 464a 15 15 15     15
23
464b 16 16 16     16
24 464c 17 16 17     16
25 464d 17 17 17     17
26 460 11 11 11     11
27 GATA H4 11 11 10     11
28 YCA II a 19 19 19     19
29 YCA II b 23 23 23     23
30 456 16 17 15     17
31 607 16 17 15     16
31 576 19 18 16     18
33 570 17 18 18     17
34 CDY a 37 38 37     38
35 CDY b 37 39 39     39
36 442 12 12 11     12
37 438 12 12 12     12


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