Trying to find my dads dad

[K8caley]

Hi I have just discovered after my dad passed away that himself and his 2 siblings all had different dads even thought their parents had been married, so i have 2 half cousins on ancestry that i grew up thinking were full cousins, and i have just found a half sister from my dad, i was also told years ago there was a baby boy of my dads from an affair who got adopted that we don't even know where to start looking although i do have some info,
On ancestry my half sister and myself match 3 particular people
1 at 157 cms, 1 at 132 cms and 1 at 200 cms, all of which are higher than my cousins children match me,
The one at 157cms and the 1 at 132 cms both match myself, my half sister, and the one at 200cms but they don't match each other but i cant work out how they dont match  , any help would be great thank you

[CaroleW]

Welcome to Rootschat

You say “the parents had been married”

If the 3 children all had different fathers - only one was possibly the child born within the marriage. 

Was the mother previously married or were any of the children illegitimate?

[Rosinish]

On ancestry my half sister and myself match 3 particular people
1 at 157 cms, 1 at 132 cms and 1 at 200 cms, all of which are higher than my cousins children match me,
The one at 157cms and the 1 at 132 cms both match myself, my half sister, and the one at 200cms but they don't match each other but i cant work out how they dont match

Is your test with Ancestry?

There's more to your DNA link than cMs i.e. % & segments & the relationship predictions for each with yourself & half sister which you haven't stated.

Knowing all details should help work out the possible scenario.

Annie

[K8caley]

Thank you for replying We think the middle child was her husbands, no she hadn't been married before and no other children that we know of.

Thank you for replying Annie, yes the test was on ancestry, ohh i wouldn't know how to work it out with segments ect

[CaroleW]

no she hadn't been married before and no other children that we know of.

after my dad passed away that himself and his 2 siblings all had different dads

For ease I will refer to the married couple as Jack & Jill.

If Jack & Jill only had one child to their marriage & Jill hadn't been previously married or had children prior to marriage - then the other 2 "siblings" were either fostered or adopted.

Do you have your fathers birth cert?  What parentage is shown?   The birth certs of the other 2 siblings will give you that info as well

Rootschat allows you to post details of any person who is now deceased - but not of any living person so you may want to consider giving a bit more info so we can see if we can help

[lisalisa]

Hello,

ok, so if I have understood correctly the matches at 132cM, 157cM and 200cM, are shared with both you and your half sister.
So the line they are shared on is your dad's family line - ie his mother and his father (who from what you say, you may not know).

Those numbers of cMs shared suggest a half 2C (half 2nd cousin, although this is not the only possibility), if that is the case the ancestor you and your half sister share with those matches, is likely to be a great grandparent.

So you need to build that side (your dad's side) of your tree, as best you can and compare it with the trees of your matches to see where you might have an ancestor in common.
[If I have misunderstood and the half sister is your dad's half sister (not yours), then your tree would follow the line of your dad's mother's parents and grandparents, presuming he and his half sister both have the same mother].

Why the matches might not match with one another is if when you go back on the tree, some are descended from one side of the family and some from the other side, a bit like having cousins on your mom's side and cousins on your dad's side,  they would both match you, but not each other.

It's hard to explain but sort of gets easier to sort out once you are able to build trees for you, your half sister and these matches.

hope this helps   
Lisa

[K8caley]

Hi Lisa, ill try and make it clearer 😁,
My dad was the oldest of 3 siblings, they all share the same mum, my dad was born in 1932 (deceased now) was the oldest,
up till 6 years ago we thought they were all full siblings ( his mum and dad were married) but  his younger sisters daughter ( my cousin) did a dna test on ancestry and our cousin from the other sister didn't match her as a full cousin, so she asked me to do a test which i did 6 years ago, and im not her full cousin either, it was also debatable if i was my other cousins full cousin as well,
Fast forward to last month and i had a match with a lady as a half sister,
 both myself, my half sister, and cousins all have shared matches which are deff on our grandmothers side ( my dads mum), then my half sister and myself have alot of shared matches which must be on our dads dads side, because my cousins don't match them,
3 people in particular match both myself and my half sister
Person 1 matches me 157cm
Person 1 matches my half sis at 132cm

Person 2 matches me at 132 cm
Person 2 matches my half sis at 36cm

Person 3 matches me at 200 cm
Person 3 matches my half sis at 364 cm

Both Persons  1 and 2 match myself, my half sis and person 3 but person 1 and 2 don't match each other,

Hope this is clearer , thank you for replying

 

[lisalisa]

Hi,

ok, thanks for the extra details, I've read your msg (outloud) a few times now to 'picture' where you all fit in. 

It suggests that the shared ancestor might be found in the parents of your dad's dad (unknown or do you have an idea?).
So these are your great grandparents.

So what you need to do is build a tree for each of your matches persons 1, 2 and 3, going back to their great grandparents (or maybe 2x great grandparents).
For each person, I would think you need to look at their maternal and paternal side, unless you can already rule one side out based on geography (or anything you might already know).

Persons 1 and 2 are going to have trees which don't over lap with one another as they don't match each other.

Look at their grandparents (and possibly great grandparents) and siblings of their grandparents and find out their names and who they married.

It is possible that your dad is a son of one of these siblings.
It's hard to explain but these trees of persons 1 and 2, will meet somewhere and the line where they meet, is the one where you and person 3 will both be on.
(Person 3 is more closely related to you and your half sister).

The tree of Person 3 will possibly, I think, be the line you are on, and will also connect with both person 1 and 2.

It's hard to explain but once you know names, dates and places it will be easier to piece it together and find where these 3 trees join.

As your dad's dad is the unknown, then building the 3 trees for persons 1,2 and 3 will hopefully show the connection somewhere and thus lead you to find the parents of the unknown dad's dad.

Hope this makes sense, it will be easier if the matches have trees (but do check everything) or if you know the location.  Also if the matches know whether you match them on their maternal or paternal line, as that will help narrow down the search and show you which branches you need to go back on.

I think you do have to draw up the trees of the matches, then your dad will fit in somewhere.

hth
Lisa

[K8caley]

Hi Lisa, thank you so much, i can go back on persons 1 and 2 quite a way but person 3 has no tree and none of them answer messages 😁, ill try doing as you suggest and doing their trees, thank you again 😁