All of the legitimate children of Martin Sr. married into the best families in their state, the descendants of colonial governors, signers of the Declaration of Independence, soldiers and even the founders of a great university. Indeed, in this family and its collateral branches, we find nothing but good representative citizenship. There are doctors, lawyers, judges, educators, traders, landholders, in short, respectable citizens, men and women prominent in every phase of social life. They have scattered over the United States and are prominent in their communities wherever they have gone. Half a dozen towns in New Jersey are named from the families into which Martin’s descendants have married. There have been no feeble-minded among them; no illegitimate children; no immoral women; only one man was sexually loose. There has been no epilepsy, no criminals, no keepers of houses of prostitution. Only fifteen children have died in infancy. There has been one “insane,” a case of religious mania, perhaps inherited, but not from the Kallikak side. The appetite for strong drink has been present here and there in this family from the beginning. It was in Martin Sr., and was cultivated at a time when such practices were common everywhere. But while the other branch of the family has had twenty-four victims of habitual drunkenness, this side scores only two. The charts of these two families follow. THE CHARTS THE CHARTS Chart I shows the line of descent of the Kallikak family from their first colonial ancestor. It was Martin who divided it into a bad branch on one hand and a good branch on the other. Each of these branches is traced through the line of the eldest son down to a person of the present generation. On the bad side it ends with Deborah Kallikak, an inmate of the Training School at Vineland, on the good side with the son of a prominent and wealthy citizen of the same family name, now resident of another State. Chart II shows the children of Martin Sr. by his wife and by the nameless feeble-minded girl, and also the children of Martin Jr. Then follow Charts III to IX and A to K, giving in detail each of these two branches, the upper series being the normal family, the descendants of Martin Kallikak Sr. through his wife: the lower is the bad family, his descendants through the nameless feeble-minded girl who was not his wife. EXPLANATION OF SYMBOLS Individuals are represented by squares and circles, the squares being males, the circles, females. Black squares and circles (with a white “F”) mean feeble-minded individuals; N means normal persons. The clear squares or circles indicate that the mentality of the person is undetermined. “d. inf.” means died in infancy. A horizontal or slightly oblique line connects persons who are mated. Unless otherwise indicated, they are supposed to have been legally married. The symbols dependent from the same horizontal line are for brothers and sisters.