Chart I shows the descendants of a feeble-minded woman who was married twice. Her first husband was normal. There were four normal children, one of whom is alcoholic. This alcoholic son married a normal woman and produced two feeble-minded and three normal children. This is another instance of the defect skipping a generation, being transmitted by the grandmother through the father.
The second marriage of this feeble-minded woman was with an alcoholic and immoral man. The result was four feeble-minded children. One of these became alcoholic and syphilitic and married a feeble-minded woman. She was one of three imbecile children, born of two imbecile parents. The result here could, of course, be nothing but defectives. There were two stillborn, and three that died in infancy. Six others lived to be determined feeble-minded. One of these was a criminal. Two are in the institution at Vineland. The mother’s sister also has a feeble-minded son.
Chart II (in two parts) is in some ways the most astonishing one we have. There are in the institution at Vineland five children representing, as we had always supposed, three entirely independent families. We discovered, however, that they all belonged to one stock. In Chart II, A, the central figure, the alcoholic father of three of the children in the institution, married for his third wife a woman who was a prostitute and a keeper of a house of ill fame, herself feeble-minded, and with five feeble-minded brothers and sisters. One of these sisters is the grandmother represented on Chart II, B.