before that, one example is a person named william slade. abraham lincoln trusted his judgment, and felt that he was in contact with everyday america. he actually got -- bounced each lines off of william slade, and took him with him when he spoke, including at gettysburg. he wanted to see what his valet thought about it. that is remarkable. the person he trusted with the gettysburg address, it was is african-american the valet. >> this was a free man? >> at this point, absolutely, yes. he had been a slave. >> there is something upstairs, downstairs. would you like to tell us? >> the idea of what the president and his family are doing, and what the household staff was doing -- it goes to the point of this amazing trust that the presidents have had in their household staff, particularly the african american staff. they did not want to talk out- of-school. franklin roosevelt's legs were paralyzed by polio. he was terribly afraid of being caught in a fire. he would run through practice -- they call them crawling and exercises -- where he would a