"Second Avenue Elevated Line" . . . . . . "elevated lines along Second Avenue" . . "Second Avenue elevated" . "IRT Second Avenue Line" . "Second Avenue Elevated" . . . . . . . "Second Avenue El" . . . "1940" . "2nd" . . "Second Avenue Line" . "Second" . . . . "IRT Second Avenue Elevated Line" . "Second Avenue" . . . . "IRT Second Avenue Line" . "Second Avenue elevated line" . "IRT 2nd Av" . . . . . . . "elevated railroad" . .