Mary B. Greene
Covington, KY
Born a storekeeper's daughter in 1868, Mary Greene left the land when she married riverboat captain Gordon C. Greene and became one of the very few women licensed as a boat master and river pilot. She steered through a cyclone, survived a nitroglycerine explosion, and after her husband's death in 1927 ran the Greeneline Steamers fleet of 28 paddlewheelers — including the famous Delta Queen.