church—or Fosdick. Riverside Church's completion sharply contrasted with the Cathedral of St. John the Divine, which remained incomplete after almost four decades. Allen & Collens's plan was described by architect Robert A. M. Stern as the culmination of a "craving for a tall cathedral among people of everyday tall ideas", which had started when St. John's was proposed in 1889. Despite the completion of Riverside Church, Rockefeller felt the surroundings still needed to be improved. In 1932, he announced he would pay for a $350,000 landscaping of the adjacent, decrepit Sakura Park. Rockefeller hired the Olmsted Brothers to renovate the park and the project was completed two years later. When Union Theological Seminary announced it would build a new apartment building at 99 Claremont Avenue. Rockefeller offered to exchange his neighboring apartment building at 122nd Street and Claremont Avenue for the lots south of the church, which were owned by the seminary. The land was swapped in 1931 after Rockefeller offered to finance part of the dormitory's construction. In 1935, the land under the church was deeded to Rockefeller and he purchased a lot at Riverside Drive and 122nd Street from St. Luke's Hospital, after which he owned all of the land along the eastern side of Riverside Drive between 120th and 122nd Streets. Rockefeller spent a total of $10.5 million on land acquisition and church construction. Use 1930s through mid-1960s The completion of the new church building at Morningside Heights resulted in a steady increase in the congregation's membership. By May 1946, the congregation had 3,500 members, an increase of 800 in twenty years. According to a brochure issued by the church, "soon every room ... was in use seven days a week", and enrollment at the church's Sunday school had correspondingly increased. Riverside Church became a community icon and a religious center of Morningside Heights. By 1939, the church had more than 200 staff in both part-time and full-time positions, and over 10,000 people a week were attending its social and religious services, athletic events, and employment programs. In addition to its well-attended Sunday morning service, Riverside Church hosted Communion services every first Sunday afternoon, as well as Ministry of Music services on other Sunday afternoons. The Riverside Guild, the young-adult fellowship, held worship services during Sunday evenings. Weddings and funerals were also hosted at the church. In 1942, the United States Naval Reserve Midshipmen's School at Columbia