I am currently halfway through this novel and have been puzzling about the time period in which it takes place. Most review sites set the novel at late 60's but there are some references that would more accurately place it in the late 70's: the fact that Mrs. March as a child had a television; she dialed 911, a service that became available in NYC in 1973; she purchased string cheese for her son, Jonathan, a product that was not commercially available until the mid '70's. Anyone else puzzling about this? Am I being pedantic?