CLEVENGER, CLEVINGER, CLEAVENGER, CLEAVINGER, and any other reasonable spelling variations are welcome to join the project. Only males have Y-chromosomes, so only male CLEVENGER/etc. can participate. If you are female, you can have a male CLEVENGER/etc. relative submit a sample for your line. To participate meaningfully, testees will need to share their direct male line ancestry back to the earliest known CLEVENGER/etc., as a pedigree (excluding living persons).