Boss Lady by Edith SparksThe careers of three pioneering businesswomen--Tillie Lewis (founder of Flotill Products), Olive Ann Beech (co-founder of Beech Aircraft), and Margaret Rudkin (founder of Pepperidge Farm)--who started their own manufacturing companies in the 1930s, sold them to major corporations in the 1960s and 1970s, and became members of their corporate boards.