Tucker & Vinton, Superstructure of Reinforced Concrete.
Tracy Plumbing Company, Plumbing.
Weber, Hugh L., Superstructure of Storehouse, etc.
Signal Towers
Tucker & Vinton, Reinforced Concrete Walls for Eight Signal Towers.
Passenger Elevators
Otis Elevator Company, Electric Passenger Elevators for 167th Street, 181st Street, and Mott Avenue Stations, and Escalator for Manhattan Street Station.
Rolling Stock and Signal Department
George Gibbs, Consulting Engineer.