He was adopted by his step dad. However, his (biological) mother came from an educated family: “Bezos is the maternal grandson of Lawrence Preston Gise, a regio

He was adopted by his step dad. However, his (biological) mother came from an educated family: “Bezos is the maternal grandson of Lawrence Preston Gise, a regional director of the U.S. Atomic Energy Commission (AEC) in Albuqurque”. - Wikipedia