Williamsbridge Reservoir was a natural lake (despite its name) measuring 13.1 acres (5.3 ha) just south of Van Cortlandt Park in the Bronx, New York.

[4] On April 3, 1934 Commissioner of Water Supply, Gas and Electricity, Maurice P. Davidson, proposed that it be offered to Robert Moses to be used as a park site.

[1] A site for the Montefiore Home, first organized in 1884, was acquired in the West Bronx, between Columbia Oval and the Williamsbridge Reservoir, in January 1910.

[5] In June 1928 a four-year-old boy, Frederic Fleishaus, of 3315 Rochambeau Avenue, the Bronx, drowned in Williamsbridge Reservoir.

[3] The Williamsbridge Reservoir property came under the control of the New York State Office of Parks, Recreation and Historic Preservation on June 27, 1934.