I finally started a Rowley Name Study here on WikiTree.
It will have three subcategories, Rowley, etc who are heads of their line 1) in USA, Australia, Canada, etc) this mean the immigrant ancestor; 2) In England, Scotland, and Ireland, etc, it means as far as the studies have gone. (:Category:1. Head of Line,Rowley Name Study). Notice that when you put it in the the text section above the Biography, you add two square brackets before and after the text.
The second subcategory will be of those that were considered Heads of their Line, but further research suggests they might belong to one of lines above. These are the ones that need Y-DNA confirmation unless other sources are good enough. (:Category:2. DNA Confirmation Needed,Rowley Name Study)
This is a list of all Rowleys that anyone wants to add. Just add it to your profiles yourself (:Category:3. Full List,Rowley Name Study)