Questions tagged [relationship-analysis]

For questions about determining or interpreting familial relationships.

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1answer
54 views

Distinguishing half siblings from first cousins (possible fathers are brothers) using shared cM

Regarding half siblings, sent my DNA to Ancestry came to a match of half sibling at 1530 cMs @ 99% half sibling however was in contact with such match and he is claiming my father or one his two ...
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1answer
25 views

Understanding DNA match of 2,559cM to grandparent

I received my DNA results from Ancestry. My first DNA match ended up being my paternal grandpa. We shared 37 percent of our DNA and 2559cm. If that seems high, what could be causing so strong of a ...
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2answers
92 views

Understanding DNA match of 1,723 cM

I have a DNA match of 1,723 cM with a male 6 years younger than me. His father is one of a twin, could my match be not my half-sibling but my 1st cousin.
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1answer
146 views

Understanding daughter's 314 centimorgans with half nephew

My daughter just learned she shared 314 centimorgans with a boy we believed was her half brothers son. I have just sent in my sample as the supposed father of her 50 year old half brother. We are all ...
2
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2answers
177 views

Why do I only share 360 Centimorgans with my 1st cousin?

I have taken a closer look at the info on my 23andMe match with my known 1st cousin. It says we share 360 Centimorgans, and the Centimorgan charts I've looked at suggest this is potentially outside ...
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0answers
23 views

Can a person confirm paternity by results of a DNA matching service to the father's distant relative?

I am trying to find a way to confirm that the man listed on my birth certificate is my father or not (hopefully not). I have some obstacles, of course, one is that he died in 2011. We were not close (...
1
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1answer
86 views

Half Uncle possibility -fathers side

I recently conducted a DNA test on ancestry.com and I received a strong match with a guy I don’t know . 758cms across 23 segments longest segment 86cm. He is 57 years of age and my father is 70 and i ...
3
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3answers
137 views

AncestryDNA showing No Match for Half Aunt?

My father's half sister just posted her AncestryDNA results. I did not come up as a match, nor did my sister. Does this mean that my father's dad is not really his dad, or could there be another ...
4
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1answer
4k views

What relation is my Half-Aunt to her DNA Matches?

I have recently discovered through an Ancestry DNA test + GEDMatch that my Aunt is my half-Aunt and that she and my mother don't share the same biological father. Looking at my Aunt's DNA Matches on ...
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0answers
27 views

Would half siblings share the same DNA links to extended family

I've matched with either a half sibling\aunt or niece on MyHeritage - we chatted and it seems like we share the same father. However, I have links to a 1st cousin once removed or second cousin, for ...
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0answers
31 views

What is the relationship based on shared DNA

We are trying to find out information regarding my mothers biological father side of the family. My mom was adopted in 1945 and later in life discovered her biological mother but not her biological ...
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0answers
31 views

How common is it to be related to another person in at least two different ways?

While exploring my genealogy, I found out that I am related to my best friend Nate via 2 different genetic routes. But a little more backstory. I was born in Texas, spent my younger years in Minnesota,...
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0answers
17 views

Unknown dna match [duplicate]

I’m new here and I just found out who my biological father was. Why I’m here is on ancestry.com a new dna match came up with 1,012 centimorgans with 36 segments longest segment is 100 centimorgans. ...
4
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2answers
207 views

Identifying John Morgan, son of Thomas D. Morgan (1809-1870)?

I have a real dilemma. I have found a DNA link to the Thomas Morgan (1791-1860) family through Frances Denira "Fanny" Morgan (1821-1899), daughter of Benjamin Francis Morgan (1762-1835), who was the ...
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0answers
11 views

Determining AncestryDNA Match relationship [duplicate]

I had my DNA tested through Ancestry.com. My closest match shares 2041cm. Is it safe to say this is probably a half-sibling? Are other ways of confirming this relationship?
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0answers
30 views

Matching one cousin more than double their sibling

I have a 1883 cM match with my first cousin. I have a 762 match with his brother, and a 4462 match with my sister. Is there an explanation?
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0answers
61 views

2nd cousin showing up as DNA match

I recently discovered I shared a DNA match with a lady of 341cMs of whom I don’t know. I’ve since made contact with her and some missing gaps discovered. She has a half sibling (1972cm) - brother , (...
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1answer
279 views

Understanding 1,537cM match to person and 1,950cM match to their uncle

I have a match with a female that is a few years younger than me (she is in the 60s). She and I match at 1,537 cM across 47 segments. Her Uncle (Paternal Uncle, as far as I know) is a match with me ...
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2answers
5k views

Sharing 52% DNA with mother

I received my 23 and me results and it says I share 52% DNA with my mom. Is this possible?
4
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1answer
680 views

Determining likely relationship based upon autosomal DNA shared cM

Given two tests that share some cM of autosomal DNA, how can I easily find the predicted relationships that such shared cM would suggest? For example, a 2,200 cM match suggests it could be either: ...
1
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1answer
51 views

Understanding relationship with Shared DNA of 1,501 cM across 50 segments [duplicate]

My husband and I recently did AncestryDNA. He came back with a DNA match (shared with his mother) that simply says "close relative". He has no idea who this person is, and his mother claims ...
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1answer
63 views

2 unknown grand fathers

I have known for a long time that my fathers father is unknown. Unfortunately, I have learned that my mothers father is unknown also. I have recently received my DNA results but the nearest match is ...
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0answers
40 views

ALL 23andme matches link via one grandparent?

I have spent hours today looking at my 23andme DNA matches, and while I have not checked every single one, it seems to me that ALL of them descend from ancestors of my paternal grandmother. I am 100% ...
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1answer
38 views

Does DNA match of 1,781 cM suggest half siblings? [duplicate]

I have been contacted by someone who says we are half sisters due to our DNA match. Our DNA is 1,781 which apparently is a high match. Would this make us half sisters? I am an only child and she is ...
0
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1answer
22 views

Is 1,147 cM match for half sibling or cousin

I have an 855 cM match with a mystery 1st-2nd cousin. My cousin has an 1,147 cM match to the same mystery cousin. Is it possible the 1,147 cM match could be a half sibling?
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1answer
198 views

Private DNA Test Results for Half Sibling

I have 2 alleged fathers and have recently ruled out one of them with a private DNA test. I am now trying to determine whether the other is my father but he is deceased, so I am testing with one of ...
3
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2answers
164 views

Determine family from obituary

I have a very poorly set up obituary and I need to determine who the 7 children and their families are, but the the way it is laid out and the punctuation are making this quite difficult for me. The ...
3
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3answers
142 views

How can two different generations of one family be a half sibling to an outsider?

My full paternal uncle and I enough cM with an outsider to both be listed as half siblings to an unknown male. My uncle shares more cM with that unknown male than I do (a female). Both my uncle and I ...
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1answer
1k views

Interpreting results of siblingship test?

My sister and I suspect we have different fathers. We took a siblingship test through DDC. The results are a little confusing and honestly, they put our wet swabs each in a paper envelope and then ...
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1answer
90 views

Trying to narrow down biological grandfather

I have been working on finding my biological grandfather. The closest DNA match I have to my father (who has taken a test) is 1015cM. I've narrowed down his father to either her father or her uncle. ...
1
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1answer
161 views

Understanding shared match of 1,177 cM? [duplicate]

I recently received a "DNA Match" on my account to some one who shows 1,177 cM shared. I am trying to understand what this is really telling me. This is important to me as I do not know who my ...
5
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1answer
10k views

Distinguishing half sibling, uncle or half nephew using Ancestry DNA?

My husband did ancestry dna to find any info on his biological fathers side. He just got a “close family” match with whom they share 1440 cM across 49 segments. Is it possible to be a half sibling?...
2
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2answers
112 views

23andme shows a man as my dad's cousin, but ancestry.com shows him as my dad's brother

I did 23andme, and so did our mystery man. Two of my grandfather's brothers also did 23andme, as well as a number of the kids and grandkids of my grandfather's brothers and sisters (my grandfather ...
1
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1answer
97 views

Does 866 cM shared suggest half aunt rather than aunt? [duplicate]

There is a joke in my family that my father's father is not his biological father. He only has sisters and his father is dead, so there's no possibility of a true test. But I'm his daughter and I did ...
0
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1answer
57 views

What is the cut off for a half-sibling and first cousin in CM's?

I am adopted and was searching for my birth family and found a cousin and since then I had someone in the family helping me with the search. I found someone who I think is my half-sibling. She did a ...
2
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3answers
248 views

Determining if 1,814cM match from AncestryDNA is Half Sibling?

My son recently had a match come up as close family the match is male and 1814cm. His only living grandfather is already in our tree at 1857cm. All other grandparents are deceased and have never ...
3
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1answer
378 views

How can 3/4 siblings share mother but not paternal ancestry?

My family is running the DNA test gauntlet and my dad got back some interesting results. He is related to his half sister (1,687 cM across 66 segments) at a level that is to be expected. He is ...
0
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1answer
61 views

Can 2,025 cM shared indicate full Siblings?

My brother and I did ancestry tests at different times. We had 2,025cM over 39 segments. Longest one was 158. As I looked at our matches all I could see was my moms side of the family. It was saying ...
2
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1answer
84 views

Mapping DNA relationships on paper

I have recently started digging into my DNA matches. I have several closely related matches. I was born in Montana and my grandma was married to a man who has no biological relationship to me. However ...
2
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2answers
82 views

Determining relationship to cousin solely based on mutual relationships to other cousins

Background I am researching genealogy on 23andMe.com, trying to find new cousins and determine their relationships to me. All the site gives me is a list of people and their predicted cousin-...
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0answers
58 views

Can niece not connect to my paternal line but her daughter connects to my maternal and paternal side?

My niece is a dna match 2112 cM over 80 segments. She only matches on my maternal side of the family. Her daughter is a dna match of 1118 cM over 46 segments. She matches both my maternal and paternal ...
2
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1answer
212 views

Can 419 and 468 shared cM indicate first cousins? [duplicate]

I was adopted and have known my birth family for many years. I just did a DNA test and found I have 702 matching cM's with the daughter of my mother's brother (making her my 1st cousin). This helps ...
10
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6answers
43k views

Is a half-sibling match on AncestryDNA reliable, or is more testing needed?

I'm new at the DNA testing but here are my results. After receiving my DNA results in January 2016 my first match was with a known cousin who is also on Ancestry with a score of 959 centimorgans at 41 ...
2
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0answers
370 views

Incest and Shared CentiMorgan Theory. Half/Full Sibling and a Single Transverse Palmar Crease

My female ‘half sibling?’ and I, also female, share 2,129 cM. We DO NOT share the same father. DNA testing revealed that conclusively. Ancestry puts us into Close Family/1st Cousin. DNA painter ...
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3answers
285 views

Is autosomal DNA match of 2,277 cM a full sibling?

My sister and I share 2,277 centimorgans. It seems low for full sibling but high for half sibling. Any thoughts?
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3answers
622 views

Are 1,053 shared cM likely to be a cousin or a half sibling?

I found a 1st cousin not connected to my mom and my dad was an only child. She has 1053 cM on 40 DNA segments. I have heard people say 1st cousins can also be half-siblings? If she is a first ...
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2answers
101 views

Do father and mother pass on same DNA to half siblings?

I grew up in a household with half siblings. Same mother different fathers. I grew up never knowing who my dad was. As I got older I started to ask questions. My mother would push back with resistance....
0
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1answer
76 views

9 of my top 11 DNA matches (three generations) show the category of 1st -2nd cousin

I am trying to find my biological father. I believe he is one of 5 brothers and am ALMOST sure of which one. My top 11 DNA matches (all relatives of those 5 brothers) state 1st - 2nd Cousin, however,...
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2answers
99 views

Explaining older sister sharing 1,961 cM as close family or 1st cousin

My older sister came back "close family-first cousin". What does this mean? Shared DNA 1961 cM across 74 segments
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2answers
220 views

Does 1,864 centimorgans indicate half-siblings? [duplicate]

My sister, daughter and I all took DNA tests for fun. My sister and I show up on Ancestry as "close family," and share 1864 Centimorgans, and we do not share any relatives that my daughter and I share ...