You always know who the mother is but in many cases you just assume the father is. Maggie Trudeau and Justin possibly being fathered by Fidel Castro? Aleister Crowley possibly being the father of Barbara Bush wife of George HW Bush? Look to the wives. We don't really have a bead on any documents of Barack Obama. He's supposed birth certificate has been claimed to be false the claim to be no records. What if we suppose his age is a new incorrect and he's more like 56 or 57 rather than 61? He could be the resulting teen pregnancy of Laura Bush or Hillary Clinton. Look to the wives look for their spawn! Any unknown children could be presented as anyone. Any known children could be fathered by anyone. Look to the wives.