Robert Kennedy was a major figure in the politics of the 1960's. His speeches and actions, as Attorney General of the United States, and later as a candidate in the primary elections, have been much studied and discussed.
One of nine children, Robert Kennedy was the father of eleven. He was tremendously popular in the press, in part because of this family image. Many of his eight brothers and sisters have earned their own fame in American politics, as have his children, and his numerous nieces and nephews.
The popularity of the Kennedy family stands as a paradox, given the hatred directed toward large families by much of the current media culture. Forty years after the emergence of the Kennedy political profile, the family remains influential in partisan government, but American culture has abandoned its respect for having children.
Statisticians, however, are not surprised by the success of the Kennedy clan. It has been shown that there is a strong correlation between large families and various indicators of success: the more children born to a married couple, the more likely those children are to earn good grades in school, do well on standardized tests, and to not commit crimes; further, those children will do better at the university, and are more likely to rise to positions of leadership in their communities and careers.
These are averages, of course. Exceptions do exist. But the general trend is undeniable, and not too surprising: to manage a large family, parents will need to be intelligent and organized, and the children will likely have these traits also.
Contrary to stereotypes in the electronic media, higher education levels among the parents also lead to larger families: married couples with college educations will likely have more children than those with less education.
Ever since Thomas Malthus wrote about population, it has been clear that sustainable, renewable, and environmentally responsible resources on planet earth can support world populations many times larger than the current six or seven billion. Overpopulation, which was considered a threat in the 1960's and 1970's, is not a danger.
Which leads us to a mystery: why, then, is there such antipathy toward families who have more than two or three children? This is a field for research. Although sociologists have advanced a number of theories, there is no clear cause for this irrational hatred - or, perhaps there is a clear cause, but nobody has yet discovered it.
