[Plate 49: Bounded by Harlem River (N.Y,C. & H.R.R.R.), Channel Line (U.S. Ship Canal), Prescott Avenue, Emerson Street, Isham Street, Seaman Avenue, Emerson Street, Broadway (Kingsbridge Road), and Dyckman Street.]
from Atlas of the city of New York, borough of Manhattan. From actual surveys and official plans / by George W. and Walter S. Bromley.
Section 22 of Final Maps and Profiles, of the 23rd & 24th Wards.
from Maps or plans and profiles, with field notes and explanatory remarks, showing the location, width, grades, and class of streets, roads, avenues, public squares and places, located and laid out by the Commissioner of Street Improvements of the 23rd and 24th wards of the city of New York : under authority of Chapter 545 of the laws of 1890.