Is Barack Obama II an illegitimate child?

http://www.barack-obama-timeline.com/

1959

Barack Obama's father, Barack Obama, Sr., an outstanding Kenyan student, is awarded scholarship from an American program offering Western educational opportunities. At the age of 23 Barack Obama Sr. leaves behind his pregnant Kenyan wife Kezia and their baby son and arrives in the United States to study math and economics at the University of Hawaii, Honolulu. Barack Obama Sr. is the first African student in the university.

Moral Values?

February 2, 1961 - Barack Obama Sr., 25, marries 18 year old Ann Dunham, a white American student he meets in a Russian-language class only a few months earlier. The ceremony takes place at Maui. At the time of their wedding, Ann Dunham is already three months pregnant with Barack Obama, Jr., and she doesn't know Barack Obama Sr. has a wife and children in Kenya. Back in 1961 interracial marriage in the U.S. is rare and in some states illegal. The couple settles in Honolulu.

Illegal Marriage, Bigamy,

http://www.capitol.hawaii.gov/hrscurrent/Vol12_Ch0501-0588HRS0572HRS_0572-0001.htm

HRS §572-1 Requisites of valid marriage contract. In order to make valid the marriage contract, which shall be only between a man and a woman, it shall be necessary that:

(3) The man does not at the time have any lawful wife living and that the woman does not at the time have any lawful husband living;

Obama Family Tree
http://en.wikipedia.org/wiki/Family_of_Barack_Obama