The general answer is that incest was not the problem that we consider it today.
Answer:
The first marriage (after Adam and Eve) was between Cain and one of his sisters (Rashi commentary, Leviticus 20:17). The two of them had children; so after that, people were able to marry less-closely-related relatives. Cain's sisters are mentioned in Genesis 5:4.
john Adams Charles Adams
Samuel Adams
yes they all are sons of liberty and they were in the the boston tea party
His wife, three sons and their wives.
John Quincy Adams
wives
The founder and origins of the Boston Sons of Liberty is unclear. Historical records refer to the organization as early as 1765.
Samuel Adams, a leader of the Boston Sons of Liberty.
john Adams
Three wives. Kausalya, Sumitra and Kaikeyi.
John Adams had only one wife, Abigail.
The Bible does not name her.(Genesis 7:7+13NIS) ". . .And Noah and his sons and his wife and his sons' wives entered the ark to escape the waters of the flood...On that very day Noah and his sons, Shem, Ham and Japheth, together with his wife and the wives of his three sons, entered the ark..."(Genesis 8:16+18NASB) . . ."Go out of the ark, you and your wife and your sons and your sons' wives with you...So Noah went out, and his sons and his wife and his sons' wives with him."