Hello
The connection finder says that they are 8 degrees from each other. Meredith Burchett the husband of Mary McCoy is the third cousin of Anna Burchett as shown in the relationship finder.
So no blood relation but they are closely related at 8 degrees.
To find these tools you use the drop down menu from the profile ID that say connection to me or Relationship to me and then put in the profile ID of the person you want to check the relationship of.
Darren