with the tracks between 9th Street and 15th Street belonging to the Coney Island and Brooklyn Railroad. Andrew R. Culver, {whom the IND Culver Line south to Coney Island is named for}, was president of the company by 1872. The Park Avenue Railroad merged with the Greenwood and Coney Island Railroad on October 9, 1874 to form the Prospect Park and Coney Island Railroad (PP&CI). In June 1883, soon after the Brooklyn Bridge opened, the PP&CI rerouted the line as an effort to make more profit. Tracks were built on Concord Street from Bridge Street west to Washington Street, and the PP&CI used the newer alignment of the DeKalb Avenue Line on Washington Street past the bridge to Front Street and Water Street and the older alignment via Gold Street and Bridge Street, which had been used primarily by the PP&CI, was abandoned. Following an agreement made on December 10, 1885, the Atlantic Avenue Railroad leased the Vanderbilt Avenue Line on January 1, 1886. This lease included the entire horsecar property of the PP&CI, which kept its steam railroad from the Ninth Avenue Depot adjacent to the Greenwood Cemetery south to Coney Island. It also included franchises to build and operate the old route via Gold Street and Bridge Street, as well as the proposed 15th Street Line from Hamilton Ferry to the depot, the Hicks Street Line from South Ferry to the depot, and the Park Avenue Line from Downtown Brooklyn east to Bushwick. Additionally, the Atlantic Avenue Railroad obtained a lease on the Ninth Avenue Depot. Culver had long desired to rid himself of the horse line, preferring to operate only the steam extension. The Nassau Electric Railroad began operating the line under lease (of the Atlantic Avenue Railroad) on April 5, 1896, and the Brooklyn Heights Railroad leased the Nassau Electric in 1899. Vanderbilt Avenue cars were through-routed with the Gravesend Avenue Line until August 20, 1950 when buses were substituted for streetcars and the line was cut back to 19th Street. Prior to 2010, the line ran along Eighth Avenue and Prospect Park West in Park Slope and terminated at 19th Street. This constitutes the southern portion of the line. In 2010, in response to a budget crisis, the B69 was rerouted to run along Seventh Avenue via the B67 route. At this time, service was also extended to Kensington, with service reduced on both routes