I have been trying to trace the branch of the Grants from Donegal, so far without success. It would appear that they lived around Buncrana in the 1800's, but it is unclear where they came from before that. They seem to have now all emigrated.
Griffiths shows 5 families in 1857, They were:-.
My grandfather's sister Mary Elizabeth Grant (1885 - 1936) was said to have been engaged to a second cousin called Grant from Donegal. The marriage never took place.
I have had correspondence with a number of people and have now started to put together some information. If anyone can help or add information, then please e-mail me.
| John | |||||||||||||||||
| | | ____ | _______ | _______ | __|_____ | ________ | ___ | |||||||||||
| | | | | | | | | | | | | ||||||||||||
| Richard | William | William | ? | Charles | ? | ? | |||||||||||
| m.Kathleen Gibbons | | | m. Grace Doherty | |||||||||||||||
| | | ___ | ______ | ___ | __ |__ | ____ | ____ | ___ | _ | |___ | _______ | _______ | _______ | ________ | ________ | ___________ | ____ | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ||
| James | John | Owen | James | Grace | Mary | Cassie | Mgt | Rose | William James | Mary | Manus | Theresa | Bridget | Catherine | Matthew? | ||
| b. 10 5 1882 | (unmar) | m.Hood | | | b. 7 May 1871 | m.Doherty | m.Smith | m.McLauchlin | m King | |||||||||
| at Buncrana | (Aus) | | | at Buncrana | ||||||||||||||
| m. C Devlin | | | | | m.Sarah Cunningham | ||||||||||||||
| d. 8.5. 1938 | | | | | from Kilkeel, Co.Down | ||||||||||||||
| | | | | | | emigrated to USA in 1888 | ||||||||||||||
| | | | | | | d 1915 | ||||||||||||||
| | | | | |__ | ____ | ____ | ____ | ___ | _ | |____ | _______ | _______ | _______ | ________ | ________ | __ | |||
| Maureen | 10 child | | | | | | | | | | | | | | | | | | | | | | | | | | | |||
| b. 1912 | Wm | Cassie | Robt | Mary | Elz | Pat | William | Henry | Charles | J Joseph | Marie | Mabel | Helen | ||||
| (Aus) | d1957 | d1971 | |||||||||||||||
The two William Grants at the top of the page, are not thought to be related
I have had a number of threads over the years, but have never cracked the Grants of Donegal.
Trees available are

and another tree

1. Under Donegal you think that the Grant families around the Buncrana area
have died out. Well let me tell you nothing could be farther from the truth.
The place is drowning in Grant surnames. The problem is however that they are
not Grants at all. The original name was O´Grainne. In the 1609 Pardon
Lists (lists of those who took part in the Cahir O´Doherty Rebellion of
1608) there are 2 Mag Ráine and 7 O´Gráinne, two forms of
the same name as the Irish speakers of Inishowen interchanged "O"
and "Mac" without any obvious reason. The modern name of this family
is erroneously given as "Grant", an Anglo-Norman name with which it
has no connection. In all records up until the beginning of the 20th. century
it appears as (O) Granny and then about 1900( the 1901 census) some high minded
person decided to change the name to "Grant" with the result that
people who were born and married as Granny suddenly became Grant.
5. From Nadine Siebert in 2004. I have traced my Mothers family, they are from Druminderry, Ballymagan, Buncrana in Donegal. Father: Charles Grant. Mother: Catherine Grant, also known as Cassie
The Children are:
Charles 19/2/20
Patrick 29/10/21
William John 1/2/24
Joseph 28/12/25
Mary-Jane 1/5/28 - My Mother
Anne Celine 18/1/31
James Columba 7/6/33
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6. Hello, My name is Seamus Grant Iam 14 years old. I am from Buncranna in Co. Donegal. I was wondering if you could please tell me more about my family Tree. My father is John Grant and my mother is Ann Divenney. My grandfather is Daniel Grant.