HI also required written permission for children under 18 to marry.
Notwithstanding the purported allegation under oath in the divorce papers, I have never believed they were married in Hawaii. Until proven wrong, I am going to speculate that they were married in Kenya.
But, like the birth, the negative allegation that there is no report of a marriage in Hawaii would only stand up until someone finds a Vital Statistics report or other news local vitals report.