- New York World's Fair 1939 and 1940 Incorporated records /
- I. Central Files /
- Series I.B. Construction (C.) /
- C3. Production /
- C3.4 Transportation Facilities /
- C3.40 External Transportation Facilities /
- C3.401 Terminals /
- C3.4011 Subway Extension /
- New York City Estimate and Apportionment, Board of (1939)