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Author Topic: Relationship  (Read 904 times)

Offline chanel

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Relationship
« on: Wednesday 07 August 19 02:44 BST (UK) »
Hi all,

If two people have a common grandfather but different mothers (not grandmothers), are they still first cousins?
Chanel

Offline MaecW

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Re: Relationship
« Reply #1 on: Wednesday 07 August 19 03:05 BST (UK) »
I don't understand the question. Don't all first cousins have different mothers (and fathers) from each other? If they shared a parent then they would be half-brothers or sisters.
Can you give a little more details so that we can understand the situation ?
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Offline chanel

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Re: Relationship
« Reply #2 on: Wednesday 07 August 19 03:32 BST (UK) »
Oops, sorry. My question should have said "......same grandfather, different grandmothers…….". The grandfather sired an illegitimate girl (my mother), then married a lady totally unrelated, had a son who married and then sired a girl. What is this girl's relationship to me?
Hope this clarifies things.

Chanel

Offline majm

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Re: Relationship
« Reply #3 on: Wednesday 07 August 19 03:47 BST (UK) »
Quote from: chanel on Wednesday 07 August 19 02:44 BST (UK)
Hi all,

If two people have a common grandfather but different mothers (not grandmothers), are they still first cousins?
Chanel

Yes.  First cousins can share just  one grandparent,  and that grandparent can be male.

JM. 
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Offline majm

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Re: Relationship
« Reply #4 on: Wednesday 07 August 19 03:57 BST (UK) »
Quote from: chanel on Wednesday 07 August 19 03:32 BST (UK)
Oops, sorry. My question should have said "......same grandfather, different grandmothers…….". The grandfather sired an illegitimate girl (my mother), then married a lady totally unrelated, had a son who married and then sired a girl. What is this girl's relationship to me?
Hope this clarifies things.

Chanel

Your  grandparent is simply one of the parents of one of your parents.  You don't need to be married to be a parent or a grandparent.

JM
The information in my posts is provided for academic and non-commercial research purposes. 
Random Acts of Kindness Given Freely are never Worthless for they are Priceless.
Qui scit et non docet.    Qui docet et non vivit.    Qui nescit et non interrogat.   
All Census Look Ups Are Crown Copyright from www.nationalarchives.gov.uk
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Offline chanel

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Re: Relationship
« Reply #5 on: Wednesday 07 August 19 04:32 BST (UK) »
Thanks JM.

Offline Mike in Cumbria

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Re: Relationship
« Reply #6 on: Wednesday 07 August 19 08:19 BST (UK) »
A stricter definition would be half first cousin.

First cousin would be good enough for me though.

Offline Craclyn

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Re: Relationship
« Reply #7 on: Wednesday 07 August 19 08:34 BST (UK) »
They would normally just be referred to as first cousins, but if you are working on DNA analysis then it is important to specify the relationship as half first cousins. This enables an understanding that they will share less DNA than full cousins.
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Offline chanel

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Re: Relationship
« Reply #8 on: Wednesday 07 August 19 14:22 BST (UK) »
Thank you for your contributions. It seems they're essentially first cousins. I'll settle for that.
Chanel.
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