Author Topic: High cM for a 3rd cousin  (Read 945 times)

Offline Gadget

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High cM for a 3rd cousin
« on: Sunday 04 November 18 13:45 GMT (UK) »

I have a known 3rd cousin who is recorded as sharing 292 cMs/18 segments with me. This is much  higher  than any of the other 3rd cousins in this line (all descended from daughters of  our 2 x greats). The others are within the range 124-169 cMs. Even my known second cousins are lower than this (199-226).

I've checked to see if we have another line in common but have not found any cross over so far  (back to 1770s).

The Bettinger chart  suggests a range of 0-217 for 3rd cousins, and puts 292 as way out of the expected range.  Do any members have similar measures for 3rd cousins?

Gadget
Census &  BMD information Crown Copyright www.nationalarchives.gov.uk and GROS - www.scotlandspeople.gov.uk

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Offline mgeneas

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Re: High cM for a 3rd cousin
« Reply #1 on: Sunday 04 November 18 18:04 GMT (UK) »
It does seem very high.
I have a 2nd cousin once removed we share 112
and a 2nd cousin 196 cm
Both are descended from my grandmother's brother
Ancestry estimates them both as 3rd-4th cousins so these are on the low side for our confirmed relationships

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Offline familydar

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Re: High cM for a 3rd cousin
« Reply #2 on: Sunday 04 November 18 18:38 GMT (UK) »
Although there's no documented double relationship, could the daddy however many generations ago be someone other than the husband?  I'm not suggesting incest, but kissing cousins perhaps?

Jane :-)

And on another topic, I think roller skating morris dancing could catch on  ;)
ALLEN
BARR, BARRATT, BERRY, BRADLEY,BRAMLEY,BRISTOW,BROWN,BUGBIRD,BUTLER
CAIN,CARR,CHAPMAN,CHARLES,CH*LTON,CHESTER,COCKETT
COLLASON,COLLYER,CORKERY
DARLING, DENYER,DICKERSON,DOLLING,DURBAN
FARMER,FURNELL
GIBSON,GILES,GROOMBRIDGE
HALL,HAMBIDGE,HARMES,HART,HICKS,HILL,HOLLOWAY
JACKSON
K*AT*S
LANCASTER,LINTON
MCDONALD,MCFADEN,MEARS,MILLARD
NICOLAS,NOAK,NORTH
PARFIT,PORTER
RIPPINGALE,ROBINS
SEARLE,SPENCER,STEDHAM
TYLER,TILLY,TUCKWELL
WADE,WAGER,WALKER,WATSON,WEBB,WITHRINGTON,WOOD

Offline hurworth

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Re: High cM for a 3rd cousin
« Reply #3 on: Sunday 04 November 18 19:38 GMT (UK) »
At which company or database?  They seem to add up the totals differently from each other.

Offline Gadget

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Re: High cM for a 3rd cousin
« Reply #4 on: Sunday 04 November 18 19:55 GMT (UK) »
Thank you for replies.

Hurworth - all are Ancestry.


Jane - One of the other 3rd cousins has this one as 94cMs, so it can't be this particular line can it or the others would probably have the same high cM with him?

I'll have to delve a bit deeper. The  3 x grandparents of both sides (i.e. a generation further back from our common ancestors) seem to have produced an amazing number of DNA matches. I'll see if I can find some matches that don't link to the other 3rds.

Gadget
Census &  BMD information Crown Copyright www.nationalarchives.gov.uk and GROS - www.scotlandspeople.gov.uk

Offline hurworth

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Re: High cM for a 3rd cousin
« Reply #5 on: Sunday 04 November 18 20:32 GMT (UK) »
Looking for examples in the matches at Ancestry we have on one kit:
3C1R who shares 119 cM across 5 segments
3C who shares 109 cM across 4 segments
3C1R  -100 cM across 6 segments
3C - 98 cM across 5 segments
3C1R - 97 cM across 3 segments

Another kit:
3C - 202 cM across 7 segments

Offline Gadget

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Re: High cM for a 3rd cousin
« Reply #6 on: Sunday 04 November 18 20:55 GMT (UK) »
I've tried to do a small tree to show cMs. I've just picked out 3 other cousins form this line.

(All Ancestry)





Census &  BMD information Crown Copyright www.nationalarchives.gov.uk and GROS - www.scotlandspeople.gov.uk

Offline familydar

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Re: High cM for a 3rd cousin
« Reply #7 on: Sunday 04 November 18 21:03 GMT (UK) »
Was AS the first-born?  Might conception have predated marriage?
ALLEN
BARR, BARRATT, BERRY, BRADLEY,BRAMLEY,BRISTOW,BROWN,BUGBIRD,BUTLER
CAIN,CARR,CHAPMAN,CHARLES,CH*LTON,CHESTER,COCKETT
COLLASON,COLLYER,CORKERY
DARLING, DENYER,DICKERSON,DOLLING,DURBAN
FARMER,FURNELL
GIBSON,GILES,GROOMBRIDGE
HALL,HAMBIDGE,HARMES,HART,HICKS,HILL,HOLLOWAY
JACKSON
K*AT*S
LANCASTER,LINTON
MCDONALD,MCFADEN,MEARS,MILLARD
NICOLAS,NOAK,NORTH
PARFIT,PORTER
RIPPINGALE,ROBINS
SEARLE,SPENCER,STEDHAM
TYLER,TILLY,TUCKWELL
WADE,WAGER,WALKER,WATSON,WEBB,WITHRINGTON,WOOD

Offline Gadget

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Re: High cM for a 3rd cousin
« Reply #8 on: Sunday 04 November 18 21:27 GMT (UK) »
It was 7 months after marriage but my lines that are unrelated to the other 3rd cousins from this line  weren't in the same area. So it's not that.

Census &  BMD information Crown Copyright www.nationalarchives.gov.uk and GROS - www.scotlandspeople.gov.uk