Home Hidden No More: Week 20 Round-Up Blog Madam C. J. Walker, Inventor & Entrepreneur Walker had been an agent for Annie Malone’s Poro brand. In the early... Hidden No More: Week 17 Round-Up Blog Learn more about pioneers like Aaron McDuffie Moore, cofounder of the North Carolina Mutual Life Insurance Company - giant of... Hidden No More: Week 15 Round-Up Blog Folklore, scientific discovery, invention and the National Toy Hall of Fame? Hidden No More: Week 11 Round-Up Blog These trailblazers paved the way for cave exploration, medical research, and everyday electrical devices like your computer. Hidden No More: Week 8 Round-Up Blog Read the #HiddenNoMore stories of five leaders in invention and medicine. Hidden No More: Week 7 Round Up Blog Read the #HiddenNoMore stories of five pioneers in exploration and invention. Hidden No More: Week 6 Round-Up Blog Read the stories of five successful inventors in our #HiddenNoMore series.