Y-DNA is passed down from fathers to sons; a Y-DNA test provides information on your direct male line.
Y-DNA determines whether families with the same last name are related and about when the common ancestor lived. Results relate only to male ancestors in your direct paternal line. Y-DNA tests also can determine a haplogroup.
In my own Y-DNA project I am trying to find the Hunter connection to John Huntar, 14th Laird of Hunterston. If you have the John Huntar in your family tree, why don’t you join me in this study?
Contact me at firstname.lastname@example.org