David A Stumpf, MD, PhD is Professor Emeritus at Northwestern University Feinberg School of Medicine (NUFSM). He is an Innovation Broker and President and lead consultant at Woodstock Health Information and Technology. He is a lifelong genealogists with research now focused on genetic genealogy applied to surname projects: Green, Avitts, and Dusenbery.

David A Stumpf, MD, PhD is Professor Emeritus at Northwestern University Feinberg School of Medicine (NUFSM). He is an Innovation Broker and President and lead consultant at Woodstock Health Information and Technology. He is a lifelong genealogists with research now focused on genetic genealogy applied to surname projects: Green, Avitts, and Dusenbery.