Hello Tim,
Now I have a question about this DNA thing.
When I get my results back from my test it
will probable show that I am connected somehow to another last name such as
Smith as was the case in an earlier letter. Is this correct? How can this be if
the Y-DNA only goes through the men?
Am I confused?
It is not difficult at all.
(1) Assume there is a farmer (14. century) without a last name
(however, he has a DNA haplotype (DHT) and let's make it simple: we call it DHT-123 )
(2) Now his neighbors call him one day BAUER (German for farmer).
At that moment his future last name BAUER gets linked to DHT-123.
[There are other farmers in other places who will get called BAUER one day, but they have DIFFERENT DHTs]
Remember: The same last name can (!) have different DHT !
(3) Our BAUER-family prospers throughout history and one of them (now a university theacher in 1820) decides that a Latin name would be "cooler" so he remames himself SATORIUS (roughly: farmer in Latin) .
Remember: His last name changed, his DHT ist still DHT-123.
(4) Now one of his sons emigrates to the US and is registered there (lets say) as ZATORI (the guy at Ellis Island was hard of hearing ... and of Italian background ...).
Remember: The name changed again ... but the DHT is still the same.
(5) ZATORI now lives in an Italian neighborhood ... and has a very (verrrry !) goodlooking wife who gives birth to a baby boy (who 'by chance' has the same hair color, nose and ear shape as ZATORI's neighbor called STALLONE ....)
Remember: The name is still the same but some other DNA (lets say DHT-911) now got into the system.
[In the future, you will find DHT-911 associated with the names Zatori AND Stallone. ]
Now combine all the name changes as you please (include single mothers [woh do not even know who the father of their baby boy is {BUT DNA KNOWS !!!} and find this in the church, wedding, military etc. papers) ...
... but you can be SURE that the DNA in the direct genetic father line (WHATEVER THEIR NAMES ARE) will remain (over 20-30 generations) absolutely the same DHT.
Ergo:
If the DHT is the same for two men they MUST be related (WHATEVER THEIR NAMES MAY BE).
If the last names of two men are the same they could eventually be related (lOOk at their DNA !) but there is no guarantee.
In another mailing list we estimated and calculated the probability of "a slipped-in baby" (in German called "Cuckoo Child") : Within 20 Generations (500 years) you have a very close to 100 % chance that you will find such an event within your family (mothers + fathers side).
So you all ... out there ... better get ready for some ...
!! SUR.... PRI ...SES !!
Sincerely
Hanno (V.J.Kolbe)