Why take a Y-chromosome test?

[BushInn1746]

An internet search have Companies with brief details about Y chromosome (or Y-STR) testing and what can be established.

I am not recommending any particular company and looks like the UK Government also have a list of approved Laboratories.
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https://isogg.org/wiki/Y-STR

The above website suggests the same Laboratory as the other person testing?

[rsel]

Good point and I hope a continuous Male line (which has your Father in that line) is still alive and taken the correct type of test.

According to what I have read, it seems that if I found a Y Chromosome match with a different surname, it can mean:-
1) that a Male line ancestor has fathered a child outside of my Tree Marriages and other family paperwork we have, or
2) a formal change of surname, or
3) the use of an alias or 'also known as' surname somewhere.

Your missing the 4th option, in most countries surnames only stablised in 'recent' history. I believe in the UK it was around 1500's. So with Y DNA its very easy to have matches with different surnames as the MRCA was before that date. In my case all my matches have different names, and the estimated MCRA is around 1300-1400 hundreds.

Richard

[BushInn1746]

Good point and I hope a continuous Male line (which has your Father in that line) is still alive and taken the correct type of test.

According to what I have read, it seems that if I found a Y Chromosome match with a different surname, it can mean:-
1) that a Male line ancestor has fathered a child outside of my Tree Marriages and other family paperwork we have, or
2) a formal change of surname, or
3) the use of an alias or 'also known as' surname somewhere.

Your missing the 4th option, in most countries surnames only stablised in 'recent' history. I believe in the UK it was around 1500's. So with Y DNA its very easy to have matches with different surnames as the MRCA was before that date. In my case all my matches have different names, and the estimated MCRA is around 1300-1400 hundreds.

Richard

Thanks

Regarding deep ancestry on the Y Chromosome an article also mentions false positives
https://isogg.org/wiki/Y-SNP_testing

Don't ask me to explain it 
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Even up to and into the 18th Century, in my searches I have noticed some spelling variations with these:-
Hood
Hord
Hoad
Hoade
Hoard
Hudd
Hurd
Hode
Hod
Hodd
Hude
Haud
Head

We use to get our surname spelt Hudd when Roy Hudd was on TV.

If one of four vowel letters a ; e ; o ; u are formed lazily when writing the spelling changes.

Some write the H so that it can be mistaken for W.

The family Hoard or Hord of Ewell and Guilford Co. Surrey have spelling variations and a suggestion of a particular Howard.

Mark

[rsel]

I was not talking so much about variations (which i get a lot with my surname even today :-) ), but more completely different name.  In my case i have Mercer's, Corbins as well as my Sellens (and it variations).  Now whilst i don't rule out any NPE's, we all seem to have good paper work trails backedup with atDNA.
Supposedly both Mercer and Sellens, have suggest the person was a salesman, so they both could be 'occupational surnames' in origin.

Richard