Descendants of Lewis ap David of Cardiganshire, Wales

DNA Results

Who am I? In truth, I am a combination of all the generations of persons whose histories are compiled herein. Unique to every male descendant is the Y-chromosome which is effectively a copy of his father's DNA. As a result, surname research can be confirmed through DNA testing. And, I am the donor for the Walden Lewis DNA test listed on the Lewis Surname DNA Project.

What does DNA analysis tell us? DNA is the definitive answer for personal genealogical research. But, it also tells the history of the migration of entire peoples. National Geographic's Genographic Project is an effort to map the migrations of ethnic groups.

Most importantly, DNA analysis can confirm or deny familial relationships. Prior to completing the DNA test, I had no knowledge of my Lewis cousins in Virginia. Although direct connections have not yet been found for every DNA match, sharing our family histories is leading each of us to answering questions about our shared ancestry.

Additionally, many researchers believed that our Lewis Family was somehow related to the Councilor John Lewis family (#6.542). Because of DNA, there is scientific proof that our Lewis Family does not branch from those Monmouthshire Lewises but is a family unique unto ourselves. [#6.30]

 

Locus

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37  

Gp

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
-
1
3
9
2
3
8
9
-
2
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
Haplo-
group
 

Modal

13 24 14 11 11 14 12 12 12 13 13 29 17 09 10 11 11 25 15 19 29 15 15 17 17                        

R-M269

#3.1

John Lewis
Northumberland Co VA
#11155
13 22 14 10 14 14 11 14 11 12 11 28 17 08 09 08 11 22 16 20 29 13 15 15 16 10 10 19 19 14 13 17 19 34 36 13 10 I-M253
#6.30 Walden Lewis
Spotsylvania Co VA
#49497
12 25 14 11 11 14 12 12 13 13 13 29 17 10 10 11 11 24 15 19 31 15 15 16 16 11 11 20 22 15 15 18 17 35 36 12 12 R-P312
#6.52 David Lewis
Hanover Co VA
#159064
13 24 14 11 11 15 12 12 11 14 15 30 18 09 10 11 11 25 15 19 30 15 15 16 16 10 10 19 19 16 15 16 18 36 39 12 12 R-M269
#6.542 Councilor John Lewis
New Kent Co VA
#44100
13 24 14 11 11 15 12 12 13 13 13 29 16 09 10 11 11 23 15 20 29 15 15 15 17 11 10 19 24 16 14 20 17 35 36 11 12 R-L21

#7.17

Irish John Lewis
Donegal, Ireland &
Augusta Co VA
#36797
13 24 14 10 11 15 12 12 11 14 13 30 18 09 10 11 11 25 15 19 29 15 15 15 17 11 12 19 23 15 15 17 16 37 38 12 12 R-M269

#7.55

Henry Lewis
Culpeper Co VA
#42224
13 25 14 11 12 14 12 12 12 13 13 29 17 09 10 11 11 25 14 18 30 15 16 16 17                         R-M269
#7.56 Planter John Lewis
Albemarle Co VA
#12489
13 25 14 11 11 14 12 12 12 13 13 29 18 09 10 11 11 25 15 18 30 15 15 17 17                         R-M269
NA Zachary Lewis II
Spotsylvania Co VA
#309884
14 24 14 10 11 14 12 12 12 14 13 30 17 09 10 11 11 25 15 19 31 15 15 16 17 11 11 19 23 16 15 18 16 38 39 12 12 R-M269

Analysis of "Old" Group 7 then #5C1 then #6B1 & now #6.30

1. Somewhere about 10 generations ago, there was a Most Recent Common Ancestor [MRCA] for the Lewis Family of Group 7. The descendants of the MRCA split into two subgroups. The ancestors of James Lewis of Louisa Co VA split on either marker 570 or CDYb, and sometime later the other marker changed also. The ancestors of John Lewis of Caroline Co VA and Walden Lewis of Spotsylvania Co VA continued along a common genetic line.

2. Somewhere about 6 generations ago, the ancestor of John Lewis of Caroline Co VA split on marker 442. And, the ancestor of Walden Lewis continued along the original genetic line.

3. Prior to the Walden Lewis 37 marker test, the difference between James Lewis and John Lewis (34/37) would have been calculated as 13 generations. The new test results allow us to reduce this distance down to 10 generations.

Note: Estimates of generations are based on the .004 FTDNA estimated mutation rate for markers 26 through 37 and a 50% or greater chance of mutation. [MCRA Calculator]

Charles Lewis
Davenport IA
c. 2006

Caveat

This site is provided for reference only. Except where specifically cited, information contained is conjecture and should not be considered as fact.
Home Index About Me