In researching my "Genealogy History And Alliances of the American House of Delano" by Major Joel Delano, (NY 1899) I have a problem. It shows Nathan Delano, the third child of Jethro Delano Sr.(b.1732) as being born in 1768. However, it shows him marrying Sarah Tripp in 1750 and his first children were born in 1752 and he had 13 of them. Then, having worn Sarah out, he married Abigail Evans and had 8 more! Does anybody have any information about Nathan's birth date or is the book wrong about who descended from whom?