yDNA Grid Chart
124691213141518192122232425303132333435363842474951535455575859606466
Hap3
9
3
3
9
0
3
9
1
3
8
5
b
4
3
9
3
8
9
-
2
4
5
8
4
5
9
a
4
5
9
b
4
4
7
4
3
7
4
4
9
4
6
4
a
4
6
4
b
4
6
4
c
4
6
4
d
4
5
6
6
0
7
5
7
6
5
7
0
C
D
Y
a
C
D
Y
b
4
4
2
5
3
1
5
9
0
5
1
1
4
1
3
-
a
5
5
7
4
3
6
4
9
0
5
3
4
4
4
4
4
8
1
5
2
0
4
4
6
5
7
2
4
9
2
Concord Line
Descendants of Capt. Thomas/1 Brooks of Concord, MA (d. 1667)
Modal132311141229159102415291516171915151717383812118102316121216122220141114
CMB 51227
R1b1a2
13231114122915992415291516171915151717373812118112316121216122220141114
CHB 57184
R1b1a2
142311141230159102415291516171915151717383812119102316121216122220141114
JMB 195277
R1b1a2
132311141229159102415291516171915151717383812119102316121216122220141114
JDB 76692
R1b1a2
132311141229159102415301516171915151717383812118102317121216122220141114
WAB 88124
R1b1a2
132311141229159102415291516171915151717383912118102317121216122220141114
Woburn Line
Descendants of Henry/1 Brooks of Woburn, MA (d. 1683)
Modal132311141229159102415291516171915151717383812118102316121216122220141114
MOB 42857
R1b1a2
1323111412291591024152915c15c17g19c15151717383812118102316121216112220141114
HLB 90157
R1b1a2
132311141229159102415291516171916151717383812118102316121216122220141114
LEB 81368
R1b1a2a1a1a
132311141229159102415291516171915151717373812118102316121216122220141114
MDB 100257
R1b1a 2a1a1a4
132311141229159102415291516171915151717383812118102316121216122220141114
RiWB 195298
R1b1a2
132311141229159102315291516171915151717383812118102316121216122220141114
WHB 95962
R1b1a2a1a1a
132311141229159102415291515171915151817383913118102316121216122220141114
RoWB 196467
R1b1a2
132411141229159102415291516171915151717373812108102316121216122220141114
Springfield Line
Descendants of William/1 Brooks of Springfield, MA (d. 1688)
Modal1324111411291791025{15,16}{29,30}151717171515{18,20}{16,17}373912118102016121216112221131112
PCB 86694
R1b1a2
1324111411291791025153015c17c17c17g15151817373912118102016121216112221131112
RLB 91726
R1b1a2
132411141129179102516291517171715152016373912118102016121216112221131112
EAB 196565
R1b1a2
132411141129179102515291517171715151916383912118102016121216112221131112
Cheshire Line
Descendants of Henry/1 Brooks of Cheshire, CT (d. c1713)
WBB 196525
R1b1a2
132410141230188102515311314171715141619383812118102316131215132420141213
LEB 75867
R1b1a2
132410151230188102415311314171715141619383912118102316131515132420141213
Unidentified as yet
ERH 19472
R1b1b2a1a4
132311141229159102415291516171915151717383812118102316121216122220141114
BGB 44638
R1b1a2a1a1b
132411141229179102515291517171715151916394012118102016121216112221131112


While all of our participants have tested 67 markers, the abbreviated DNA signatures in this grid chart include only those markers whose results vary among participants within a given group.

The top row of each group contains the group's modal signature ("modal"), comprised of the values that occur most frequently within the group. The analysis and chart were produced by Second Site. The program's author John Cardinal notes, "Second Site's modal value logic is subject to a marker comparison limitation that affects duplicated markers such as 464a/b/c/d. Second Site compares them as individual values whereas experts recommend reordering the values for maximum matching. This limitation will be removed in a future release."

Haplogroups in black text have been confirmed by our lab. Haplogroups in red italic text are predicted by our lab.