Hi anonymous! Are you a member of WikiTree, and just not signed in? As a member of WikiTree, you can search to find all the people with profiles on WikiTree with the surname Hammett. There are currently 391. You could sort them on birth date, and look to see if there are any who were born in Virginia after 1890. You can also see who is managing those profiles, and ask if they know family members who are willing to take a yDNA test.