I have a long list of U.S. Rowley immigrants that have no ties back to their home country and I'm sure each of the other researchers from other countries has a head of their line they haven't been able to get past. I would like to identify each of these lines in some way in the Rowley etc. Name Study. What is a practical way to do this? This could allow me to compare Y-DNA as it becomes available for each line or branch. Some of the branches I've checked, like William Henry, have links back to Henry, but aren't proven. The list [Rowley-8, Rowley-2359, Rowley-38, Rowley-1657] took an hour to compose, comparing my database with WikiTree. Once the Heads are identified, it would be nice to keep track of them and have their DNA together to study. ( I obviously could not add more than one name on the WikiTree ID/URL level, so I picked the most prominent one.)