the crestwood library was originally located at a room in the p.s. 15 school in yonkers. it was established through funding by the crestwood library association and it opened on july 8, 1923. there was a total of 1,100 book on its shelves at this location. the library was registered with new york state on may 5, 1923. the crestwood library needed a new location after being told by the administration at p.s. 15 that the library space was needed for a classroom. property was found at a location on thompson street in yonkers to build the crestwood library. construction for the library began on december 22, 1925 and was completed on october 16, 1926. the library finally had a permanent home. with the opening of the library, the crestwood library came under the direction of the city yonkers. the crestwood library officially joined the yonkers public library on october 18, 1928.