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 Thomas Jameson Family of Maryland - group details

Family and descendants of Thomas and Mary (Doyne) Jameson (1665-1734) of Charles Co., Maryland

Oldest Presumed Ancestor: Whoever Wherever?

Oldest Proven Common Ancestor: Thomas Jameson (1665-1734)

More Recent, Now Y-DNA Proven "Common" Ancestor : No one Yet

Other Implied Y-DNA Ancestors : Thomas Jameson (1665-1734) and Alosysius Jameson (c.1803-1872)


Notes about test data below:

Details listed below are those test results pertaining to the areas relevant to the primary lineage of just the Y-Chromosome of each person tested and does not otherwise represent that person genetically beyond this narrow pedigree only study.


Haplo Group/Tree - Haplogroups are the categories (groups) each persons belongs with. These haplogroups (A-Z) are determined by a person's DNA, specifically the existence of certain SNPs within each persons DNA. These SNPs are known to mutate slightly and infrequently every few hundred years forming new inheritable SNPs, indicating new subclades (subgroups by way of mutations). The numbers in the chart below are the unique SNP markers revealed in each test result. They represent the DNA location where a specific mutation occurred, creating what can be considered new "branch" of the Haplo tree.

  Notes about this chart: SNP test results shown below, are from different individuals of just this Jameson family group.
Note on the color coding : Green = tested and confirmed, Orange = predicted.
Test ID Pedigree to Common Ancestor H
a
p
l
o
Significant SNPs - oldest to newest (Terminal SNP)
Thomas Jameson (c.1665-1734) - MD  DNA Family Group = MD-Thomas-1665
 637820 - Thomas\Benjamin\Samuel I M170 M253 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
 958252 - Alosysius\Thomas\Aloshus I M170 M253 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?
 

SNP Comments and Analysis:

The two (Basic, 37 marker) SNP test results (so far) indicate an "I" (eye) Haplogroup, with a 'terminal' SNP subclade (mutation) "M253" (ergo: "I-M253"). The SNP -M170/M253 prediction is reliable, based (at this point) on scientifically verified STP discoveries, which collectively determines the overall "I" (eye) haplogroup, as well as the general area of that overall (I) haplogroup within the entire "Y" genome. This is important as it categorizes where these two tests (people) are Y-DNA located in the bigger scheme of things, narrowing possibilities dramatically.

This "I" (eye) haplogroup, with the M253 subgroup (mutation) is thought to have originated some 15,000 to 20,000 or more, years ago, perhaps in the Iberian Refugia (Spain) and is itself a subclade (subgroup) from the I-M170 subgroup, formed even earlier, about 40,000 to 45,000 years ago, most likely in the middle east or northern Africa. These Jam?son families would most likely have come from those of the I-M523 haplogroup who concentrated in the area now known as Denmark or Northern Germany and made their way to the British Isles either directly, or by way of Scandinavia, although that can not be properly verified without further SNP testing.

These initial predictions, however reliable, are insufficient to help much in determining, any relationship suggested by these two tests. They are too old and too broad. Further SNP testing within these tests will be necessary to determine even more recent SNP subclade categorizing, if wanted. The information learned from further testing of newer subcategories (mutations), may help determine what that relationship might actually be, as well as provide more anthropological insights as to migrations, time line locations and other cultural backgrounds.



Y-DNA DYS Profile - As determined by the STR numbers in the DYS chart below. These DYS numbers in the heading are the DNA location of specific genetic information shown in the test results below. The actual results are expressed with extraneous numbers, which only become useful when collectively considered an individual's overall profile and used to compare to someone else's test. Each 'Profile' should be looked at as a whole, like you would a finger print.

Notes about this chart: STR test results shown below, are from different individuals of just this Jameson family group.
Test ID Pedigree to Common Ancestor DYS#
3
9
3
3
9
0
1
9
3
9
1
3
8
5
a
3
8
5
b
4
2
6
3
8
8
4
3
9
3
8
9
i
3
9
2
3
8
9
i
i
4
5
8
4
5
9
a
4
5
9
b
4
5
5
4
5
4
4
4
7
4
3
7
4
4
8
4
4
9
4
6
4
a
4
6
4
b
4
6
4
c
4
6
4
d
4
6
0
G
A
T
A

H
4
Y
C
A

I
I

a
Y
C
A

I
I

b
4
5
6
6
0
7
5
7
6
5
7
0
C
D
Y

a
C
D
Y

b
4
4
2
4
3
8
Thomas Jameson (c.1665-1734) - MD DNA Family Group = MD-Thomas-1665
637820 - Thomas\Benjamin\Samuel 13 22 14 10 13 13 11 14 11 12 11 29 15 8 9 8 11 23 16 20 28 12 15 15 16 10 10 19 21 16 14 17 19 37 37 12 10
958252 - Alosysius\Thomas\Aloshus 13 22 14 10 13 13 11 14 11 12 11 29 15 8 9 8 11 23 16 20 28 12 15 15 16 11 10 19 21 16 14 17 19 36 38 12 10
 

STR Comments and Analysis:

These two (Basic, 37 marker) are nearly identical, off in only 3 places and by only one repeat in each of those locations, suggesting a definate relationship. Extended STR testing, may help in determining if that relationship remains close enough to determine if they are the same nuclear family, or if the relationship is true, but with a more distant (and yet unknown) common ancestor.


Other Tests (elsewhere) of Importance, Not Included in this Group:

None yet


Notes & Analysis:

No comparative analysis between these two tests, can be made until there there is further testing from both of these tests. Suffice to say however, that these two people are closely related in some way. Tradition methods (outside DNA testing) should also be closely examined.


Data Sources include: FTDNA's Jamieson Project, ISOGG, National Geographic's Genographic Project, Ancestry's DNA Program and other users sources.
Every direct male descendant (must have the Jam?son surname) is encouraged to help find your ancestors with our DNA study program. Please read this page of answers about DNA testing and then contact us about how to coordinate your results.