Guild of One-Name Studies
One-name studies, Genealogy
Study: Gilbourne   
Variants: Gilborn, Gilborne, Gilburn, Gillborn
Category: 3 - A study where research using core genealogical datasets and transcriptions is well under way on a global basis.
Website: home.clara.net/daibevan/ons/Gilbourne_home.htm
DNA website: www.familytreedna.com/groups/gilbourne/about
Contact: Mr Dai Bevan
Well know and still living (and hence not shown in my on-line trees):
A DNA study for the names Gilbourne and Kilbourne and their variants was commenced in July 2020. First results are eagerly awaited!
https://www.familytreedna.com/group-project-search?sType=eq&search=Gilbourne