Possible Clues:

• RMN's 1968 running mate
• Getting-off point: Abbr.
• D.C.'s Union ___
• Where to board a train: Abbr.
• Dep.
• Site of a tkt. booth
• Penn in N.Y.C., e.g.
• 27-Acr.
• It may be at the end of the line: Abbr.
• Stop along the line: Abbr.