The letter F(?) that preceeds Washington AVENUE would lead me to believe that these immigrants were heading for Ft (Fort) Washington Avenue - upper Manhattan/that ran/still runs from appx 165 Street to appx 190th Street?Today this would be in the proximity of the George Washington Bridge.
There is a public library in the area, attended by the distinguished likes of Henry Kissinger, Lou Gehrig, Maria Callas, Ralph Ellison, Marianne Moore, and Jacob Javits.
Consider performing an online inquiry.
Fort Washington Branch Information | The New York Public Library
Turn of the century Washington Street (downtown Hudson River waterfront) had many group lodgings for immigrants.
Many of those disappeared when the Holland Tunnel was built.The various govt buildings in the immediate area were built post Depression Era.