it is interesting, because the popular culture evolves, and in the 1950's, mamie eisenhower, althougheen as very much a traditional figure, she was every bit as much a fashion role model, a cultural icon as jackie kennedy was just a few short years later. >> and the next administration. everybody copied her bangs. >> television was the internet of its day. >> she was always on the best dressed list, which looks a little strange to us now, post jacqueline, but in her day, she was thought to be one of the most best-dressed women in america, and she continued to make the best dressed lips, listing top american -- make that best-dressed lists. ike had real health problems. it made it easier for the first lady to drop -- to adopt the more traditional protective stance. >> mamie eisenhower perhaps lesser-known. we found in the first series, there were quite a few that we introduced people to. who are the gems? the unknown gems? >> grace coolidge. the best first lady you know nothing about, you know? we can all agree, scratching our heads how she ever stayed married to him, a very difficult