Watson Mansion, 1911. Described in the New York Times article that told of its sale, the Watson Mansion was described as "a rambling stone structure of English architecture with wide portico and gabled roof." The home was called Willmount (many of the Bronx "country" homes were named) by its builder, William Watson. A wealthy merchant in mid 19th century New York, the man himself died in 1877 and his wife resided in the grand home until her death in 1894. In 1909 the estate, which amounted to 1200 city lots with a frontage of 3000 feet on the Bronx River, was sold. The land was quickly subdivided and sold off for development.

New York, Westchester & Boston Railway, November 17, 1916. The New York, Westchester & Boston Railway was an electric commuter railroad in the Bronx and Westchester County in operation from 1912 until 1937. For most of its history it was operated by the New York, New Haven & Hartford Railroad. This Westchester Avenue Station was designed by famed architect Cass Gilbert, and completed in 1908. The Gothic style building is richly decorated with terra cotta tiles. This was one of 12 stations Gilbert was commissioned to design for the railroad, and one of the handful that were actually constructed. The style of this station displays details that Gilbert would repeat a few years later on his NYC magnum opus, the Woolworth Building. Service to the station ceased in 1931, with the line being completely out of service by 1937. With the introduction of the subway to this area of the Bronx in the 1920s, the stations on this line never saw the commuting traffic that had been planned for. Today the station is abandoned, overgrown, and nearly in ruin. The station, which partially projects over the tracks below, has been listed on the Landmarks Conservancy's list of endangered places for years. In 2012 a proposal was created for the restoration and reuse of the building, but as of 2018, this project does not seem to have commenced.

View from the IRT Pelham Line (today’s 6 train) station at Morrison Avenue-Soundview, 1933. The buildings visible at right, the Soundfield Apartments, are on Morrison Avenue, south of Westchester Avenue. The unbuilt lots at left have been converted to baseball fields, abutting the southernmost segment of the Bronx River Parkway, an extension completed in 1951.