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The Dorsey/Darsey/Darcy/Dawsey/Dossey/D'Arcy

Surname Project


 

 To Define and Verify Family Lines and Connections

Established 2002
This project is organized, administered, and paid for by family members
for the purpose of linking ourselves to the past.

Project Results and Discussion

Lineage I  An Irish line that includes the line of Edward Darcy/Dorsey

We are fortunate to have DNA samples from five well documented descendants of Edward Darcy-Dorsey. In addition, we have DNA from several more individuals who have paper trails that strongly suggest they are also Edward Darcy-Dorsey descendants.  A few others can now be included in that group based on the similarities of their DNA signatures to those of the documented descendants.  And, somewhat surprisingly, we have additional participants with matching DNA who have proven roots in Ireland which post-date the appearance of Edward Darcy-Dorsey in America.  DNA results from all of these participants are shown in TableI-1.

DNA Signatures of Documented Edward Darcy/Dorsey Descendants

The first two rows of results in Table I-1 comprise the haplotypes (combination of marker values) of two fourth cousins who trace their descent eleven generations from 1Edward Darcy/Dorsey’s son 2John Dorsey via their common ancestor 7Richard Dorsey (6Edward/5Edward/4Edward/3Edward/2John/1Edward).1  7Richard Dorsey was born in Frederick, Maryland and died July 1833 in Washington, Kentucky.2  That these two match perfectly on all 25 markers tested tells us that it is unlikely there have been mutations of these markers in either line and that their shared haplotype (on these 25 markers) is also the haplotype of their common ancestor 7Richard Dorsey.  

Y-STR Haplotype Comparisons for Lineage I
Dorsey/Darcy/Dossey/D’Arcy DNA Project

January 2006

Including the line of the Immigrant Edward Darcy/Dorsey

Darcy or Dorsey Ancestor

Marker Values

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

Proven Descendants of Edward Darcy/Dorsey

2John of 1Edward

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

11

11

25

15

18

29

15

16

16

17

2John of 2Edward

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

11

11

25

15

18

29

15

16

16

17

2Edward of 1Edward

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

12

11

25

15

18

30

15

16

16

17

2Edward of 1Edward

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

12

11

25

15

18

31

15

16

16

17

2Edward of 1Edward

13

25

14

11

11

12

12

12

12

14

14

30

 

 

 

 

 

 

 

 

 

 

 

 

 

Probable Descendants of Edward Darcy/Dorsey
William Cumming Dorsey  13  25  14  11  11  12  12  12  12  14  14  30  17   9  10  12  11  25  15 18  29  15  16  16  17

William H KY 1807

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

12

11

25

15

18

30

15

16

16

17

William B. 1805 MD

 13 25 14 11 11 12 12 12 12 14 14 30                          

Vincent PA 1829

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

11

11

25

15

18

 31

15

16

16

17

Proposed haplotype of Edward Darcy/Dorsey

Proposed Edward Darcy-Dorsey

13

25

14

11

11

12

12

12

12

14

14

30

17

9

10

11

11

25

15

18

30

15

16

16