Everyone Has Two Family Trees – A Genealogical Tree and a Genetic Tree.

The Cofield DNA Project - Y-DNA Classic Chart list closely related genetic families that may or may not be related by paper records.

Please remember that with a Y-DNA37 match with a genetic distance of ZERO (0), means your relatedness to this individual is extremely close, with the common ancestor predicted, 50% of the time, in 5 generations or less and with a 90% probability within 16 generations.

This is why genealogical and genetic research are both very important to identify ancestors over many generations.