Hi, Linda! John Terrill's profile is an orphan (in WikiTree terms, that means it has no one managing it) and it looks to be unsourced. His only shown daughter, Delilah, is also orphaned and has no usable sources. So this would be a perfect opportunity to join and adopt those profiles!
As with all genetic genealogy, the paper-trail is fundamental to determining where the DNA matches. On WikiTree, getting the family entered and sourced is job one; job two is getting people in the family who have taken DNA tests to enter that basic test information. Then the info about possible connections can propagate up and down the tree, presenting new avenues for research of the three different types of DNA used in genealogy.
We're a friendly bunch. Join and ask questions!