Eastman surnamed males (and variants) are welcome to join the project and are encouraged to order a Y-chromosome test (Y-DNA) if they haven't already done so. ALL Eastman and listed surname variant descendants are welcome to join the Eastman DNA Project and are encouraged to order Family Tree DNA's Family Finder test (if they haven't already done so), or transfer their results in from other test sites, e.g., Ancestry, MyHeritage or 23andMe.