Industrial hygienist Monona Rossol returns to discuss how artists can protect their health when living in former industrial spaces. Historian Candice Shy Hooper explores the lives and experiences of Jessie Frémont, Nelly McClellan, Ellen Sherman and Julia Grant, the wives of Lincoln's top generals. Jazz musician Jill Barber and singer-songwriter Matthew Barber on their first collaboration "The Family Album." Ezra Edelman's five-part documentary explores O.J. Simpson's life, decline and legacy.