Related Clues:
- Some transit initials
- Grand Central org
- NYC line
- New York transit org
- Kingston Trio hit that inspired the CharlieCard for Boston commuters
- Big Apple subway line
- N.Y. transit org
- The Bronx's Jerome Ave. line is part of it
- NYC old transit letters
- NYC's first subway co
- Its first train ran from City Hall to 145th St
- Subway line found in four of this puzzle's Across answers
- Org. that moves New Yorkers, found in six other Across answers
- LIRR owner
- Co. bought by NYC in 1940 that's found in the five longest answers