The gray clapboard house on the two-lane road in a western suburb of Boston looked, in fall 1974, the way you would expect a comfortable old Massachusetts house full of children to look. It was rambling and tall, made out of a house and a barn butted together. There were other barns out back, down a long gravel drive that stretched to a grove of trees: small sheds and one big building, 200 feet on the long side, painted an iconic barnyard red.