Lower Manhattan (New York, N.Y.)

The 1,845 Independent Subway System (IND) Route 103 photographs show construction of portions of the Sixth Avenue Line (the B train, D train, F train and M train) and the Culver Line (the F train) from Manhattan into Brooklyn via the Rutgers Street tunnel under the East River.

The 2,992 Independent Subway System (IND) Route 101 photographs show construction on the Eighth Avenue Line (the A train and C train) from Greenwich Village south to Fulton Street in Manhattan, and into Brooklyn via the Cranberry Street Tunnel under the East River.

The 1,816 Contract Four, Route 33 photographs show the construction by the Brooklyn-Manhattan Transit Corporation (BMT) of the continuation of the Broadway Line from Manhattan into Brooklyn via the Montague Street Tunnel (the R train), connecting to the Fourth Avenue Line in Brooklyn.

The 1,606 Contract Four, Route 9-0 photographs show the construction by the Brooklyn-Manhattan Transit Corporation (BMT) of a portion of the Nassau Street Line (the J train and Z train) from Chambers Street to Essex Street. The route covers the following sections: Section 1, Centre Street from Chambers Street to Duane Street; Section 2, Centre Street from Duane Street to Canal Street; Section 3, from Grand Street to Broome Street; Section 4, Delancey Street from Mulberry Street to the Bowery; Section 5, Delancey Street from Christie Street to Essex Street.

The 4,056 Contract Four, Route 8 photographs show the construction by the Brooklyn-Manhattan Transit Corporation (BMT) of a portion of the Canarsie Line (sometimes referred to as the 14th Street–Eastern Line) from Manhattan into Brooklyn and Queens (the L train).

The 1,333 Contract Four, Route 5, Sections 1-5 photographs show construction by the Brooklyn–Manhattan Transit Corporation (BMT) of a portion of the Broadway Line (the N train, Q train, R train, and W train) from Morris Street to Union Square in Manhattan. Most of the photographs are views along Trinity Place, Church Street, and Broadway from Vesey Street to Union Square. They include the Trinity Church and St. Paul's Chapel churchyards, Washington Square Park, and excavation work at Union Square.

The 1,809 Contract Three, Route 48 photographs show construction by the Interborough Rapid Transit Company (IRT) of the Brooklyn Branch of the Broadway–Seventh Avenue Line (the 2 train and 3 train) from Park Place in Manhattan to Clark Street and Borough Hall in Brooklyn. The route covers the following sections: Section 1, Park Place under City Hall Park and along Beekman Street to William Street; Section 2, William Street to Hanover Square; and Section 3, Old Slip in Manhattan to Clark Street in Brooklyn, passing under the East River via the Clark Street Tunnel.

The 3,496 Contract Three, Route 4 & 38 photographs show the construction by the Interborough Rapid Transit Company (IRT) of the Broadway–Seventh Avenue Line from Times Square to Chambers Street (the 1 train, 2 train, and 3 train) and from Chambers Street to South Ferry in Manhattan (the 1 train).

The 2,869 Contract Two photographs show the continuation of subway construction by the Interborough Rapid Transit Company (IRT), connecting City Hall on the Lexington Avenue Line in Manhattan to Atlantic Avenue on the Eastern Parkway Line in Brooklyn via the Joralemon Street Tunnel under the East River (the 4 train and 5 train). There are many photographs of buildings along Joralemon Street in Brooklyn Heights. Other photographs show the subway being constructed beneath the elevated tracks along major arteries such as Flatbush Avenue.

The 4,744 Contract One photographs show the earliest subway construction by the Interborough Rapid Transit Company (IRT), including portions of the Lexington Avenue Line (the 4 train, 5 train, and 6 train); the 42nd Street Shuttle; the Broadway–Seventh Avenue Line (the 1 train, 2 train, and 3 train); the Lenox Avenue Line (the 2 train and 3 train); and the West Farms Division of the White Plains Road Line (the 2 train and 5 train).