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Archiver > DNA-R1B1C7 > 2008-01 > 1200599497
From: "" <>
Subject: Re: [DNA-R1B1C7] The Trinity Ui Neill study
Date: Thu, 17 Jan 2008 11:51:37 -0800
References: <bd5.235eb14e.34c07cf7@aol.com> <9656caf80801170703n68275d26y48c7b422a6ed5918@mail.gmail.com><001601c85925$63693380$6402a8c0@DW1><BAY119-W3517F8A59B77A6B9690FED5410@phx.gbl>
In-Reply-To: <BAY119-W3517F8A59B77A6B9690FED5410@phx.gbl>
May be we should consider it to be 'subjective".
There is no way, unless you have docs, that you can pin down an estimate
let alone a actual event.
Steven Lominac wrote:
> I have to agree with David on this one. I too thought the 25 year generation time was a bit conservative until I thought past the firstborns. In my own family, my father was the 10th of 10 and his father was 45 when he was born. My great grandfather was 47 when my grandfather was born. I guess I'm lucky as hell to be here. Steve
>
>
>> From: > To: > Date: Thu, 17 Jan 2008 08:24:08 -0800> Subject: Re: [DNA-R1B1C7] The Trinity Ui Neill study> > Since we're looking only at the Y-chromosome succession here, we don't need> to worry about the ages of the mothers involved. The point is that if a> males historically fathered a surviving child every year or two between the> ages of 20 and 50, the average age for that generation is 35. I have no> doubt that tracing firstborns only would get you a new generation every 23> years or so on average, but if we are tracking all individuals who left> offspring (and specifically male offspring), the average generation would be> longer. And if we tracked only lastborn sons of lastborns, the generation> length could be quite long indeed.> > This is discussed periodically on the RootsWeb DNA list, and as I recall the> statistics for people with long and complete family trees show that in the> last 300 years, the age of the father when his m!
iddle child was born was> about 30-32. I usually use 30 as a generation length -- or as a cruder> yardstick three generations per century. > > David Wilson> > -----Original Message-----> From: > [mailto:] On Behalf Of Paul Conroy> Sent: Thursday, January 17, 2008 7:03 AM> To: > Subject: Re: [DNA-R1B1C7] The Trinity Ui Neill study> > Lochlan,> > Why would you say:> > I'm not sure but I think these figures are assuming a 25 year average per> generation which is probably too low.> > > In most of recorded history, and probably before that time too, men got> married in their early 20's and women a few years after puberty 16+, they> also lived short lives, so that figure looks conservative to me if> anything?!> > Cheers,> Paul> > > -------------------------------> To unsubscribe from the list, please send an email to with the word 'unsubscribe' without the quotes i!
n the subject and the body of the message
>>
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--
Jeffery G. Scism, IBSSG
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