Map of the Williamsbridge Reservoir area, 1901. Image: NY Public Library
Lionel Pincus and Princess Firyal Map Division via Wikimedia Commons.
E. Belcher Hyde Map Co., Double Page Plate No. 36, Part of Ward 24, Section
12. Atlas of the borough of the Bronx, city of New York : based upon
official plans and maps on file in the various city offices; supplemented by
careful field measurements and personal observations, by and under the
supervision of Hugo Ullitz.