Places
- Mount Vernon Memorial Highway (Va.)3
- Mount Vernon, Alexandria & Washington Electric Railway1
- National Zoological Park (U.S.)2
- Necessaries26
- New Room97
- New York (N.Y.)1
- Newburgh (N.Y.)1
- North Grove3
- North Lane77
- North Lumber Room6
- Northeast Garret Chamber6
- Northwest Garret Chamber2
- Old Chamber27
- Outbuildings5
- Palm House1