Hypothetical Y-Chromosomal Adam

(237 kya to 581 kya)
Haplogroup Defining SNP Age
A~270k
A2-T
BTM4270-80kya
CTM168~72.5 kya
CFP143~70-75 kya
FM89~50 kya
IJKF15
KM9
PM45~26-45 kya
RM207
RY482
R1M173
R1aM420
·SRY10831.2
·M198
·M417
·Z645
·Z283
·Z282
·Z284
·S4458
·S5301
·S5153
"Young Scandinavian"  ·L448~3.3 kya
·YP355ca. 1 CE
·YP609
·YP4252
TMRCA lived ca. 1250 CE  · (To date, shared only by Cooley/Hackett)

YP4248 YP3936 YP3938 YP4249 YP4250 YP4251 YP4252 YP4253 YP4254 YP4255 YP4256 YP4257 Y16296

(Emerged c1250-c1738)

To date, known to be shared
only by descendants of John Cooley

YP4491
YP4492
YP4493
YP4494




TMRCA=John Cooley, (c1738-1811)


EKA=John Hackett, 1746
Derbyshire, England

Unnamed Hackett SNPs
(Emerged c1250-c1950)

To date, only the Hackett
tester is known to have
these SNPs

(Position, Old>New)
14332063 G>A
14551401 G>A
21900841 T>G
23485419 G>A
23561078 G>C

Edward Cooley, 1763
Virginia

James Cooley, 1772
North Carolina

Hackett
(Emerged c1763-1950)

A7497
A7498
YFS514147
YFS514073
Z11827/M8813
(Emerged c1772-1952)

A7411
A7499

Hackett

Michael Cooley (1950-)
YF04134

Don Cooley (1952-)
YF3739

Phillip Hackett (1959-)
YF2932