Jo Ann, the test requires a male who carries the surname of the group that is being tested. In this case, FRENCH. Your son carries the surname of Campbell and would have Campbell Y-DNA. You would have to test one of your male relatives who are named French. I tested my nephew. Julia French Wood In a message dated 7/24/2004 2:12:21 PM Central Daylight Time, [email protected] writes: On this DNA testing, could my son, be worked in on this? I am a "blood French Line", would there be enough markers to count with him? Since I do not know all the in's and out's on DNA, I am just wondering, Thank's Jo Ann French~Campbell [email protected]