Helpful Background on the Significance of Matches and Close Matches:
- See the Y-DNA discussion at Reading and Comparing Results for a general overview of what the results are expected to show.
- See Understanding 12-Marker Matches, Understanding 25-Marker Matches, Understanding 37-Marker Matches and Understanding 67-Marker Matches for more detail as to the likely significance of matches and close matches for the chosen level of testing.
- Those desiring more information should consult the other tutorial information available at Family Tree DNA and World Families Network.
Discussion of the Leffew DNA Project's results: