dys: Some New Hampshire Jamesons

Y-DNA testing yeilds two types of results, this page is about one type of those results.

Fortunately for anyone interested in patriarchal genealogy, the Y-chromosome of every living male contains a unique collection of genetic information. What is important here is not so much what this genetic information is, but the knowledge that parts of it are always inherited at the exact same location and in the same way from that individual male's predecessors, over and over for the past tens of thousands of years. Any deviation between results within these so called markers[1] means the DNA comes from men with different genetic paternal parentage. This is not to say that all the genetic information is handed down from father to son(s) intact, generation after generation, just certian parts of the Y-chromosome and that is what is tested and what makes it so important to anyoune interested in patriarchal genealogy.

This test is for a collection of specific ambiguous markers, known as STR[2] markers, chosen for their reliability and because they occur in everybody's Y-DNA, are collectively labeled as the "DYS"[3] profile, which can be thought of (and used like) a genealogical fingerprint. Because Y-DNA testing is, for the most part, a comparative process, comparing one persons test directly with someone else's 'test' - looking for a match, is why this type of test (DYS profile) is most often considered useful to relationship genealogy.

OUR FAMILY PROFILE - As Expressed in Numbers - The STR Results

Y-DNA test results are usually expressed as a string of DYS[4] numbers, collectively known as STR[2] numbers and often referred to as markers.[1] These numbers are not medically informative, personally identifiable, or even understandable to the scientifically untrained, nor need they be.

DNA genealogy might be better understood and easier to use, if this collection of numbers are simply thought of as that person's YDNA profile.

It is then just a simple matter of comparing one person's profile with another person's profile to determine if they are related. Where more than one persons YDNA profile matches others, that profile can be said to be a "family" YDNA profile, which in the case of our particular Jameson family can be seen below. If the profiles do not match, it can equally be said that these two people are not related, at least not biologically. Questions arise where the profiles are close with just a few differences, but even two or three mismatches, over a 37 marker profile, can mean hundreds of years of separation to a common ancestor, and not generally considered a direct line of closely related people.

Test ID	Pedigree to Common Ancestor	DYS markers.
Test ID	Pedigree to Common Ancestor	3 9 3	3 9 0	1 9	3 9 1	3 8 5	4 2 6	3 8 8	4 3 9	3 8 9 i 1	3 9 2	3 8 9 i 2	4 5 8	4 5 9	4 5 5	4 5 4	4 4 7	4 3 7	4 4 8	4 4 9	4 6 4	4 6 0	G A T A H 4	Y C A I I	4 5 6	6 0 7	5 7 6	5 7 0	C D Y	4 4 2	4 3 8
Family Branch: Hugh Jameson (1713-1790) - Ire/NH
88227 -	Hugh\Alexander\Daniel	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	16	20	28	12-15-16-16	10	10	19-21	14	14	16	21	36-37	12	10
185066 -	Hugh\Daniel\Jonas	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	15	20	28	12-15-16-16	10	10	19-21	14	14	16		36-37	12	10
195455 -	Hugh\Hugh\Hugh	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	16	20	28	12-15-16-16	10	10	19-21	14	14	16	21	36-37	12	10

Family Branch: Thomas Jameson (1710-1764) - Ire/NH
*178784``** -	Thomas\Alexander\Thomas	13	22	14	11	14-14	11	14	11	12	11	28	17	8-9	8	11	23	16	20	28	12-14-14-15	10	10	19-21	14	14	18	20	35-37	12	10
*284596``** -	Thomas\Alexander\Thomas	13	22	14	11	14-14	11	14	11	12	11	28
201202 -	Thomas\John\Robert	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	16	20	28	12-15-15-16	10	10	19-21	14	14	16	20	36-37	12	10
979509 -	Thomas\Thomas\James	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	16	20	28	12-15-16-16	10	10	19-21	14	14	16	21	36-36	12	10

Family Branch: William Jameson (1816-18??) - Ire/PA
816905 -	William\Jonathan\William	13	22	14	10	13-15	11	13	11	12	11	28	15	8-9	8	11	23	16	20	28	12-15-16-16	10	10	19-21	14	14	16	21	36-37	12	10

*``** There is a question of paternal lineage regarding this test - see here for explanation
`*` Note on the DYS Marker color coding : Red = faster mutating markers.

Another benefit of this type of genetic testing is that a Y-DNA profile from any living male, worldwide, can now be compared to our established Jameson Y-DNA family profile and if anyone matches our profile we all can be said to be of a common ancestor, regardless of name, place or otherwise known ancestry. Furthermore, if one of these people can otherwise identify and prove an ancestry (any ancestry), past a common ancestor, then we all can assume that ancestry. Conversely, if a Jameson male has Y-DNA profile does not match our known Jameson family profile, he cannot claim to be part of this family, at least genetically, regardless of any paper trail.

SAME PROFILE - Different Surname?

Yes, this is not just possible, it exists, and there are several known examples. See here for a more thorough explanation: Same Y-DNA Profile, But Different Surname? Surnames are relatively new and our Jameson ancestors were part of a family, like everyone else, that existed before surnames were used. Anyone descended from our common ancestors, prior to the use of surnames would, of course, match our same DNA profile. Others, of irregular birth, or those that adopted alternate surnames would also match our DNA profile. We were all, at onetime, descended from the same family.

However, for our purposes, to determining the history, ancestry and complete content of our particular "Jameson" family, we focus primarily on those using the Jam?on surname.

OUR HAPLOGROUP - Ancient Historical Profile

All male humans alive today can be classified into a specific Y-DNA Haplogroup in the Y-DNA Haplotree based on SNP markers found in their Y-DNA. By examining SNPs from indigenous individuals from around the world, scientists can estimate the time and location each SNP first occurred. Once the time and location of occurrence of the SNP is known, it becomes a "time and date stamp" which can be used to trace ancestry.

- Click here for our New Hampshire Jameson Y-DNA Haplogroup details.

FEMALE DNA STUDY?

Genealogy using DNA to research a female line can be done by testing mtDNA. Like Y-DNA, mtDNA is inherited from a parent, but in this case it is only passed on from mother to child. Although males do inherit mtDNA from their mothers, they do not then pass it on to their children. This unique feature of mtDNA allows it to be used for tracing matrilineage, the study of the maternal side of a family. In addition and like Y-DNA, mtDNA testing can also be used to determine a person's mtDNA (maternal) Haplogroup and Haplotype for ancient history and migrations research.

Because of traditions in our society, where the wife takes her husband’s last name, a surname genealogy trace of the female line of the family tree is more difficult and confusing.

Maternal family research works best on a individual basis if you want to know your entire ancestry (as in "the history of John/Jane Doe?), but it does not lend itself well to the study of a single family surname lineage (as in "the Genealogy of the Doe Family"). mtDNA usage is better suited to someone currently living who wants to start with himself/herself and discover their linage going backwards, new to old. Those interested in this should then look into mtDNA testing and research.

For our purposes maternal side research through DNA study does not work. If a living person today looks at mtDNA results, for the purpose of ancestral discovery, his or her findings would quickly go off in a divergent tangent, away from our Jameson family focus. Our purpose here is to study the Jameson family, old to new.

In the last few years DNA testing for use with researching family histories and genealogy, has become widely available, affordable and as such a unique and important toot. There are now several very reputable labs who do this specifically for genealogy as well as groups who have organized for unique family projects.

We test for the Y Chromosone and use the Family Tree DNA - Genealogy by Genetics, Ltd. company.This type of DNA testing helps us understand and focus on the patriarchal nature and family grouping of our specific Jameson family. We are part of several DNA Projects including: The Jameson Family DNA Project, the Gunn Sept List DNA Project, the Clan Stewart DNA Project, the Ulster (Ireland) Heritage DNA Project, the Scotland DNA Project, and the Haplogroup I1 Project.

We urge every Jameson male descendant (must have the Jameson surname) to help find your own ancestors with this DNA program. Please read this page of answers about DNA testing and then contact us about how to coordinate your results.

- for information on how to get started

[1]	"Marker" is the actual location on the chromosome and the 'number' associated with that marker is the number of times the genetic material is repeated at that location.
[2]	STR is an acronym for "Short Tandem Repeat" a scientific term used to identify a series of short term (hundreds of years) markers (DYS numbers) in Y-DNA testing and analysis
[3]	DYS is an acronym for "DNA - Y-Chromosone - Segment" - and is basically referring to a collection of STR locations, usually along with the number of repettive returns at that location.

Our New Hampshire Jameson Family Y-DNA Results & 'DYS' Profile