To send a message directly to a BlackBerry user's PIN: 1  If the PIN is associated with one of your contacts: 2  Open the Messaging application and select the icon (the open envelope and pencil).
The name Executive Mansion was used in official contexts until President Theodore Roosevelt established the formal name by having the de facto name White HouseâWashington engraved on the stationery in 1901.
White House. The White House is the official residence and workplace of the President of the United States, located at 1600 Pennsylvania Avenue NW in Washington, D.C. It has been the residence of every U.S. president since John Adams in 1800.