Y-DNA Testing

DNAHeritage.com [now Family Tree DNA]

FamilyTreeDNA.com

Y-DNA Databases

Ybase - public database by DNA Heritage [now Family Tree DNA] .

Ysearch - public database by Family Tree DNA.

SMGF.org - public database by Sorensen Molecular.

YSTR.org - Y-STR Haplotype Reference Database.

YHRD.org - Y Chromosome Haplotype Reference Database.

mtDNA Databases

mtDB - Human Mitochondrial Genome Database.

mitoSearch.org - Mitochondrial Search.

Greathouse Surname Resources

Greathouse Point - Greathouse Historical Center.