Debbie Dunn is an American sprinter, who specializes in the 400 metres. Originally from Jamaica, she attended Fairmont Heights High School in Maryland, then Norfolk State University, and became an Ame

Lashinda Demus is an American retired hurdler who specialized in the 400 meter hurdles, an event in which she was the 2011 world champion and 2012 Olympic gold medalist, becoming the first woman from