With the journalist Frances Spatz Leighton, co-author of a number of White House memoirs, Parks published My Thirty Years Backstairs at the White House. The book covers a 50-year period in the life of domestic staff in the White House. It reports Parks's experiences as a seamstress, and those of her mother, 'Maggie' Rogers, who served as a housemaid for thirty years. Many of the gifts she received (revealed in the aforementioned book) from presidents during her time there later became notable artifacts and collectibles associated with presidential history, eventually ending up in the Raleigh DeGeer Amyx Collection. She also published The Roosevelts: a family in turmoil in 1981 in collaboration with Frances Spatz Leighton.