Dot Robinson and her daughter Betty at a 1947 motorcycle rally in Laconia, N.H.

Dorothy "Dot" Robinson, the wife of dealer Earl Robinson, competed alongside men in endurance races during the Depression. She was also co-owner of the Detroit dealership and a motorcycle courier during World War II. Known as "The First Lady of Motorcycling," she estimated logging over 1.5 million miles on motorcycles throughout her lifetime.