A new type of DNA chart introduced in Second Site presents data in a more intuitive viewing format than the usual grid. Below you'll find abbreviated DNA signatures overlaid on a familiar descendant chart constructed with traditional genealogical ("paper") evidence. This overlay chart includes calculated Y-DNA signatures for ancestors derived from the test results of their descendants.

For the MRCA (Most Recent Common Ancestor), a derived signature is often called a modal signature. This DNA Overlay Chart, however, does not derive DNA signatures using the statistical mode — i.e., it does not choose the values that occur the most frequently in the set of descendant markers. Instead, it uses a "maximum parsimony" method described by Alvy Ray Smith. The rules are designed to choose marker values that would produce the observed test results of descendants via the minimum number of mutations.

The Second Site program which built this chart derives probable DNA signatures. It is possible for unlikely mutation sequences to occur, such as multiple mutations occurring in the same generation, which obscure the DNA signature of the father. All methods for deriving DNA signatures are subject to uncertainty, but the maximum parsimony method reduces the possibility that a bias in the test results (many people tested from one branch of the family) will unduly influence the derived DNA signature of the MRCA.

Capt. Thomas/1a Brooks
(1594/95 - 1667)
13,29,10,29,38,{38,39},8,10,{16,17}
Dea. Joshua/2a Brooks
(c 1630 - b 1697)
13,29,10,29,38,38,8,10,16
Noah/3a Brooks
(1656 or 1657 - 1738/39)
13,29,10,29,38,38,8,10,16
Ebenezer/4a Brooks
(1691/92 - 1768)
13,29,9,29,37,38,8,11,16
Dea. Simon/5a Brooks
(1722 - 1808)
Jonah/6a Brooks
(1767 - 1850)
Dr. Lyman/7a Brooks
(1796 - 1865)
Lyman James/8a Brooks
(1832 - 1912)
Clarence Morrison/9a Brooks
(1881 - 1944)
Lyman Clarence/10a Brooks
(1915 - 1948)
CMB 51227
13,29,9,29,37,38,8,11,16
Thomas/4a Brooks
(1701 - 1790)
13,29,10,30,38,38,8,10,17
Aaron/5a Brooks
(1727 - 1811)
Pvt. Stephen/6a Brooks
(1759 - 1848)
Walton/7a Brooks
(1800 - 1881)
Ivers Harvey/8a Brooks
(1831 - 1927)
James William/9a Brooks
(1861 - 1933)
James Douglass/10a Brooks
(1903 - 1984)
JDB 76692
13,29,10,30,38,38,8,10,17
13,29,10,29,38,38,9,10,16
Dea. John/4a Brooks
(1701/2 - 1777)
13,29,10,29,38,38,9,10,16
Lt. Charles/5a Brooks
(1732 - 1798)
{13,14},{29,30},10,29,38,38,9,10,16
John Hapgood/6a Brooks
(1779 - 1867)
James Oliver/7a Brooks
(1827 - 1917)
{13,14},{29,30},10,29,38,38,9,10,16
Frederick Wilder/8a Brooks
(1874 - 1949)
14,30,10,29,38,38,9,10,16
Frederic Wilder/9a Brooks
(1911 - 1997)
CHB 57184
14,30,10,29,38,38,9,10,16
Arthur William/8a Brooks
(1858 - 1941)
13,29,10,29,38,38,9,10,16
Arthur Howell/9a Brooks
(1887 - 1963)
Irwin Thorpe/10a Brooks
(1916 - 2000)
JMB 195277
13,29,10,29,38,38,9,10,16
Capt. Samuel/5a Brooks
(1729/30 - 1817)
13,29,10,29,38,38,0,0,0
Dea. Samuel/6a Brooks
(1755 - 1825)
John Adams/7a Brooks
(1803 - 1866)
John Adams/8a Brooks
(1831 - 1890)
John Adams/9a Brooks
(1867 - 1941)
Robert Sumner/10a Brooks
(s 1921 - )
RNB 356107
13,29,10,29,38,38,0,0,0
Caleb/2a Brooks
(c 1632 - 1696)
13,29,10,29,38,39,8,10,17
Capt. Ebenezer/3a Brooks
(c 1670 - 1742/43)
Samuel/4a Brooks
(1709/10 - 1766)
Pvt. Abijah/5a Brooks
(1759 - 1812)
Abijah/6a Brooks
(1796 - 1849)
Samuel J/7a Brooks
(1822 - 1901)
Eugene Allen/8a Brooks
(1860 - 1928)
Wylie/9a Brooks
(1890 - 1954)
WAB 88124
13,29,10,29,38,39,8,10,17
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Haplogroup: R-M269
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Haplogroup: R-M269
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Haplogroup: R-BY16169
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5
142314111114121212131330159101111241519291516171911111923151517173838121211915169101081010122323161012121681222201412111311111412
Haplogroup: R-Z343
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
3
9
3
3
9
0
1
9
/
3
9
4
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
Y

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
5
3
1
5
7
8
3
9
5
-
S
1
a
3
9
5
-
S
1
b
5
9
0
5
3
7
6
4
1
4
7
2
4
0
6
-
S
1
5
1
1
4
2
5
4
1
3
-
a
4
1
3
-
b
5
5
7
5
9
4
4
3
6
4
9
0
5
3
4
4
5
0
4
4
4
4
8
1
5
2
0
4
4
6
6
1
7
5
6
8
4
8
7
5
7
2
6
4
0
4
9
2
5
6
5
132314111114121212131329159101111241519291516171911111923151517173838121211915169101081010122323161012121681222201412111311111412
Haplogroup: R-M269
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
3
9
3
3
9
0
1
9
/
3
9
4
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
Y

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
5
3
1
5
7
8
3
9
5
-
S
1
a
3
9
5
-
S
1
b
5
9
0
5
3
7
6
4
1
4
7
2
4
0
6
-
S
1
5
1
1
4
2
5
4
1
3
-
a
4
1
3
-
b
5
5
7
5
9
4
4
3
6
4
9
0
5
3
4
4
5
0
4
4
4
4
8
1
5
2
0
4
4
6
6
1
7
5
6
8
4
8
7
5
7
2
6
4
0
4
9
2
5
6
5
1323141111141212121313291591011112415192915161719111119231515171738381212
Haplogroup: R-M269
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
3
9
3
3
9
0
1
9
/
3
9
4
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
Y

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
5
3
1
5
7
8
3
9
5
-
S
1
a
3
9
5
-
S
1
b
5
9
0
5
3
7
6
4
1
4
7
2
4
0
6
-
S
1
5
1
1
4
2
5
4
1
3
-
a
4
1
3
-
b
5
5
7
5
9
4
4
3
6
4
9
0
5
3
4
4
5
0
4
4
4
4
8
1
5
2
0
4
4
6
6
1
7
5
6
8
4
8
7
5
7
2
6
4
0
4
9
2
5
6
5
132314111114121212131329159101111241519291516171911111923151517173839121211915168101081010122323171012121681222201412111311111412
Male