Free DNA tests/Rayburn
From ISOGG Wiki
One free 37-marker Y-DNA test is on offer for any male with the surname Rayburn or variants who can provide proven ancestry for at least 4 generations of UK or Irish roots. Known ancestry must date prior to 1900.
Rayburn, Raeburn, Raburn, Rayborn, Reyburn, Raybourn and all similar variations
For further details contact the Project Administrator, Roger Rayborn at http://www.familytreedna.com/public/RAYBURN .