The President's House. White House Historical Association and the National Geographic Society: 1986. ISBN 0-912308-28-1. Seale, William, The White House: The History of an American Idea. White House Historical Association: 1992, 2001. ISBN 0-912308-85-0. West, J.B. with Mary Lynn Kotz. Upstairs at the White House: My Life with the First Ladies.
The White House Christmas tree has been displayed in the Blue Room many times since 1961. It has also occasionally been displayed in the Entrance Hall. Generally, there is more than one Christmas tree in and around the White House, for instance, in 1997 there were 36, in 2008 there were 27.
The Cabinet's role is to advise the President on any subject he or she may require relating to the duties of each member's respective office.