1968
Pleasant Grove Apartments (opened 1956) replaced the five barrack-style dorms on North Campus that were built in 1947 to house WWII veterans and demolished in 1955. Map extract is from 1968 Cornell Campus Plan. It also shows more permanent accommodation for married students, Hasbrouck Apartments, on the other side of Pleasant Grove Rd. Hasbrouck Apartments opened in time for the Fall semester in 1961.
Extract from Campus Plan (1965-68), Cornell University. Cornell Botanic Gardens Records, Collection # 34-4-2362, Folder 2 [ https://library.artstor.org/asset/SS35197_35197_19457670 ]